Site Report: react.dev (new docs)
React documentation (public)
2026-10-23 13:26 / 2026-10-23_131318
Crawl data: 2026-10-23_131318
Executive Summary
At Risk

99 of 100 pages have at least one priority problem. Most trace back to a missing meta description.

Health: At Risk, based on 100 pages crawled from react.dev (new docs).

Nothing was set aside before analysis.

Note: Only the first 100 pages were crawled; counts describe that sample.

What we found
  1. 99 of 100 pages have no meta description, leaving search engines to choose snippet text on their own. See evidence(Findings tab)
    e.g. /blog, /blog/2021/06/08/the-plan-for-react-18, /blog/2022/03/08/react-18-upgrade-guide and 96 more
  2. All 100 pages carry no structured data (JSON-LD). See evidence(Findings tab)
    e.g. /, /blog, /blog/2021/06/08/the-plan-for-react-18 and 97 more
  3. No XML sitemap was found at the standard addresses, and robots.txt declares none. See evidence(Dashboard tab)
  4. http://www.react.dev takes 2 redirects to reach https://react.dev. See evidence(Dashboard tab)
Fix first
  1. Add meta descriptions (99 pages) See evidence(Findings tab)
  2. Add structured data (JSON-LD) to key pages (100 pages) See evidence(Findings tab)

Working well: Internal links are 100% HTTPS, pages average 2,687 words, and the average response time is 102 ms. 100 of 100 crawled pages send signals that allow indexing. An address that does not exist answers 404 (Not Found).

100
Pages Crawled
654
Total Issues
99
Pre-Launch Priority
283
Recommended
2533
Implemented Well
At Risk
Site Health
Site Health Metrics

Cross-page analysis of SEO fundamentals across the site.

Unique Titles 99.0%
1 duplicate group
Schema Coverage 0.0%
Pages with JSON-LD structured data
Alt Text Coverage 91.3%
401 of 439 images
HTTPS Links 100.0%
Internal links using secure protocol
Avg Word Count 2687
2 thin pages (<300 words)
Avg Response 102ms
Server response time average
Thin Pages 2
2.0% of pages under 300 words
Orphan Pages 0
Pages with no inbound internal links
SEO Strategy & Reach
44/100
Basic
📍 Location: ,
🗺 Service Area: Unknown
44% -- Basic
Geographic Reach
0/20
Scoring Methodology ▶
Sub-Score Points What Was Measured
Geo Page Coverage 0/4 No geo-targeted pages found
Market-Relative Coverage 0/4 0 geo pages (unknown market expects 8+)
Content Localization 0/4 no geo pages to assess
NAP & Local Schema 0/4 No phone or LocalBusiness schema found
Service Area Strategy 0/4 No geographic targeting strategy detected
Scoring Criteria:
  • Geo Page Coverage: Raw count of dedicated geo-targeted pages. 0 pages = 0, 1-3 = 1, 4-7 = 2, 8-15 = 3, 16+ = 4.
  • Market-Relative Coverage: Geo pages relative to market size. is a unknown market (expects 8+ pages for full score). Thresholds: <10% = 0, 10-29% = 1, 30-59% = 2, 60-99% = 3, 100%+ = 4.
  • Content Localization: Measures whether geo pages contain genuine local content or are template copies with only city names swapped. Additive scoring: +1 if titles >80% unique, +1 if descriptions >50% unique, +1 if headings mention city names, +1 if word counts vary >15%.
  • NAP & Local Schema: Business identity signals. No NAP = 0, phone only = 1, LocalBusiness schema but inconsistent NAP = 2, consistent NAP + schema = 3, consistent NAP + schema ON geo pages = 4.
  • Service Area Strategy: How strategic is the geographic targeting? No strategy = 0, only listing page = 1, <30% suburb coverage = 2, 30-60% = 3, >60% = 4. Multi-state presence can boost by +1.
Service Depth
16/20
Scoring Methodology ▶
Sub-Score Points What Was Measured
Service pages 6/None 6 pages
Content-rich (300+ words) 5/6 5 of 6
With review schema 0/6 0 of 6
Content Authority
16/20
Scoring Methodology ▶
Sub-Score Points What Was Measured
Avg word count 4/4 2687 words (content pages)
Meta description coverage 0/4 1% (1/100)
Title uniqueness 4/4 99.0% unique
H1 quality 4/4 99% of pages have exactly 1 H1
Content uniqueness 4/4 0 near-duplicate group(s)
Technical Foundation
8/20
Scoring Methodology ▶
Sub-Score Points What Was Measured
Sitemap coverage 0/4 0% (0/100)
Schema coverage 0/4 0.0% coverage
Meta tag coverage 0/4 1% have title+desc+canonical
Indexation health 4/4 0 noindex, 0 bad canonical
Performance & security 4/4 HTTPS: 100%, avg response: 102ms, HSTS: yes
Competitive Positioning
4/20
Scoring Methodology ▶
Sub-Score Points What Was Measured
Brand consistency 0/4 0% of titles
Review signals 0/4 0 pages, 0 reviews
Local business signals 0/4 0 pages, 0 complete
Internal linking 4/4 avg 76.7 links/page
Differentiated content 0/4 0 schema types, FAQ: no
What does this score mean? ▶

What the Strategy & Reach Score Means for Publishers

For a blog, documentation site or publication, content is the product, so the score reads a little differently than it does for a business site:

Topic depth. The Service Depth dimension counts dedicated, substantial pages for each topic, guide or section. Pillar pages that cover a subject thoroughly and link out to related articles rank better, and keep readers longer, than a flat stream of posts.

Content authority. Unique titles and descriptions, one clear H1 per page, substantial articles and no near-duplicate pages (tag archives, printer versions, syndicated copies) are the core of a publisher's search visibility.

Trust signals. A consistent brand in page titles, Organization and Article structured data, author and about pages, FAQ markup where it fits and rich internal linking between related pieces help search engines and readers judge the content as credible.

Technical foundation. An XML sitemap that covers every article, canonical URLs on syndicated or paginated content, noindex used only where intended, HTTPS and fast pages make sure new work is found and indexed quickly.

Geographic reach matters mainly to local news and regional publications; for other publishers it is informational.

Together, these show whether a site is built to earn search traffic across its topics, or relies on visitors who already know where to look.

Issue Breakdown by Severity
Severity Count Description
Implemented Well 2533 SEO best practices properly implemented. Great work!
Pre-Launch Priority 99 Issues that directly impact SEO rankings or user experience and should be addressed before launch.
Recommended 283 Improvements that would strengthen the site's search presence and overall quality.
Informational 272 Minor observations and nice-to-have improvements for reference.
Site-Level Checks

5 checks: 2 pass, 2 warn, 1 info. Based on what Webtrace can see from outside the site (24 extra requests).

Status Check Finding
Warn One canonical address
http://www.react.dev takes 2 redirects to reach https://react.dev.
https://react.dev/ (200); HSTS on
  • Pass https://www.react.dev reaches https://react.dev in one permanent redirect.
    https://www.react.dev/ -> 308 -> https://react.dev/ (200)
  • Pass http://react.dev reaches https://react.dev in one permanent redirect.
    http://react.dev/ -> 308 -> https://react.dev/ (200)
  • Warn http://www.react.dev takes 2 redirects to reach https://react.dev.
    http://www.react.dev/ -> 308 -> https://www.react.dev/ -> 308 -> https://react.dev/ (200)
  • Pass Deep links on https://www.react.dev keep their path.
    https://www.react.dev/blog -> 308 -> https://react.dev/blog (200)
  • Pass Deep links on http://react.dev keep their path.
    http://react.dev/blog -> 308 -> https://react.dev/blog (200)
  • Pass Deep links on http://www.react.dev keep their path.
    http://www.react.dev/blog -> 308 -> https://www.react.dev/blog -> 308 -> https://react.dev/blog (200)
What to do: Send http://www.react.dev to https://react.dev with one permanent (301 or 308) redirect that keeps the path.
Pass Unknown URLs return 404
An address that does not exist answers 404 (Not Found).
https://react.dev/webtrace-soft-404-check-c164550bfb20/ -> 308 -> https://react.dev/webtrace-soft-404-check-c164550bfb20 (404)
  • Pass An address that does not exist answers 404 (Not Found).
    https://react.dev/webtrace-soft-404-check-c164550bfb20/ -> 308 -> https://react.dev/webtrace-soft-404-check-c164550bfb20 (404)
Warn Discovery files (robots.txt and sitemap)
No XML sitemap was found at the standard addresses, and robots.txt declares none.
https://react.dev/robots.txt (200, 24 bytes, 0 Sitemap lines)
  • Pass robots.txt loads (200).
    https://react.dev/robots.txt (200, 24 bytes, 0 Sitemap lines)
  • Warn No XML sitemap was found at the standard addresses, and robots.txt declares none.
    https://react.dev/sitemap.xml (404)
    https://react.dev/sitemap_index.xml (404)
    https://react.dev/wp-sitemap.xml (404)
What to do: Publish an XML sitemap and declare it in robots.txt with a Sitemap: line.
Pass Analytics tags
G-B1E83PJ3RT (Google Analytics 4) is on 100% (100/100) of the crawled pages.
G-B1E83PJ3RT (Google Analytics 4) 100% (100/100)
Info Ownership verification tags
The homepage carries 1 verification tag: google-site-verification.
google-site-verification sIlAGs... (43 characters)
  • Info The homepage carries 1 verification tag: google-site-verification.
    google-site-verification sIlAGs... (43 characters)

What these checks cannot see: Search Console ownership verified by DNS record, HTML file, Google Analytics or Tag Manager; analytics sent from the server or added later by JavaScript or a consent tool; redirects that depend on cookies, location or the visitor's browser; anything behind a login. Probe requests identify themselves as WebtraceBot and follow robots.txt.

Page-by-Page Audit (100 pages)
URL Title Status Words Issues Health Indexable
▶/ React 200 1436 9 Needs Attention Indexable
  1. Recommended META: Description too long (260 chars, recommended max 160)
    The meta description is 260 characters. Search engines typically show up to 160 characters. A shorter description ensures the full snippet is visible.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 24 of 43 images missing alt text
    Some images are missing alt text (24 of 43 images missing alt text). Adding descriptive alt attributes improves accessibility for screen readers and helps search engines understand image content.
  5. Recommended ACCESSIBILITY: 40 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (40 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  6. Informational META: Title too short (5 chars, recommended min 30)
    The title tag is only 5 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  7. Informational MULTIPLE H1: 2 H1 tags found
    This page has more than one H1 heading. While not critical, using a single H1 helps search engines understand the page's primary topic more clearly.
  8. Informational CONTENT: Very low text-to-HTML ratio (3.0%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  9. Informational PERFORMANCE: Large page (266 KB, recommended <100KB)
    The page weighs 266 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/state-as-a-snapshot State as a Snapshot – React 200 2359 9 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 6 of 7 images missing alt text
    Some images are missing alt text (6 of 7 images missing alt text). Adding descriptive alt attributes improves accessibility for screen readers and helps search engines understand image content.
  5. Recommended ACCESSIBILITY: 6 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (6 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  6. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  7. Informational META: Title too short (27 chars, recommended min 30)
    The title tag is only 27 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  8. Informational CONTENT: Very low text-to-HTML ratio (5.2%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  9. Informational PERFORMANCE: Large page (227 KB, recommended <100KB)
    The page weighs 227 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/adding-interactivity Adding Interactivity – React 200 2886 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 3 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (3 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  6. Informational META: Title too short (28 chars, recommended min 30)
    The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  7. Informational CONTENT: Very low text-to-HTML ratio (4.8%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (297 KB, recommended <100KB)
    The page weighs 297 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/react-developer-tools React Developer Tools – React 200 514 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 2 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (2 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  6. Informational META: Title too short (29 chars, recommended min 30)
    The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  7. Informational CONTENT: Very low text-to-HTML ratio (3.0%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (107 KB, recommended <100KB)
    The page weighs 107 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/render-and-commit Render and Commit – React 200 1314 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 7 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (7 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  6. Informational META: Title too short (25 chars, recommended min 30)
    The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  7. Informational CONTENT: Very low text-to-HTML ratio (4.7%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (167 KB, recommended <100KB)
    The page weighs 167 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/thinking-in-react Thinking in React – React 200 4277 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 2 of 3 images missing alt text
    Some images are missing alt text (2 of 3 images missing alt text). Adding descriptive alt attributes improves accessibility for screen readers and helps search engines understand image content.
  5. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  6. Informational META: Title too short (25 chars, recommended min 30)
    The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  7. Informational CONTENT: Very low text-to-HTML ratio (7.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (278 KB, recommended <100KB)
    The page weighs 278 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/tutorial-tic-tac-toe Tutorial: Tic-Tac-Toe – React 200 16585 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 16 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (16 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  6. Informational META: Title too short (29 chars, recommended min 30)
    The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  7. Informational CONTENT: Very low text-to-HTML ratio (8.1%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (8.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (940 KB, recommended <100KB)
    The page weighs 940 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/useactionstate useActionState – React 200 5150 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (22 chars, recommended min 30)
    The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (6.0%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (475 KB, recommended <100KB)
    The page weighs 475 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/usecallback useCallback – React 200 4294 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (19 chars, recommended min 30)
    The title tag is only 19 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (6.7%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (358 KB, recommended <100KB)
    The page weighs 358 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/usedebugvalue useDebugValue – React 200 749 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended ACCESSIBILITY: 1 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (1 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (21 chars, recommended min 30)
    The title tag is only 21 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (3.0%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (176 KB, recommended <100KB)
    The page weighs 176 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/usedeferredvalue useDeferredValue – React 200 2762 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (24 chars, recommended min 30)
    The title tag is only 24 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (5.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (296 KB, recommended <100KB)
    The page weighs 296 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/useeffect useEffect – React 200 7755 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (17 chars, recommended min 30)
    The title tag is only 17 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (7.0%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (587 KB, recommended <100KB)
    The page weighs 587 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/useeffectevent useEffectEvent – React 200 3095 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (22 chars, recommended min 30)
    The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (5.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (303 KB, recommended <100KB)
    The page weighs 303 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/useid useId – React 200 1552 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (13 chars, recommended min 30)
    The title tag is only 13 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (3.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (235 KB, recommended <100KB)
    The page weighs 235 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/useinsertioneffect useInsertionEffect – React 200 1142 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (26 chars, recommended min 30)
    The title tag is only 26 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (4.2%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (182 KB, recommended <100KB)
    The page weighs 182 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/uselayouteffect useLayoutEffect – React 200 2119 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (23 chars, recommended min 30)
    The title tag is only 23 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (5.1%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (256 KB, recommended <100KB)
    The page weighs 256 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/usememo useMemo – React 200 5836 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (15 chars, recommended min 30)
    The title tag is only 15 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (7.1%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (445 KB, recommended <100KB)
    The page weighs 445 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/useoptimistic useOptimistic – React 200 5038 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (21 chars, recommended min 30)
    The title tag is only 21 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (5.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (461 KB, recommended <100KB)
    The page weighs 461 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/usestate useState – React 200 4795 8 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (16 chars, recommended min 30)
    The title tag is only 16 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  7. Informational CONTENT: Very low text-to-HTML ratio (5.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  8. Informational PERFORMANCE: Large page (431 KB, recommended <100KB)
    The page weighs 431 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2023/03/16/introducing-react-dev Introducing react.dev – React 200 2893 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 1 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (1 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Informational META: Title too short (29 chars, recommended min 30)
    The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (6.5%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (222 KB, recommended <100KB)
    The page weighs 222 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2025/10/01/react-19-2 React 19.2 – React 200 2088 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended ACCESSIBILITY: 2 of 7 images missing alt text
    Some images are missing alt text (2 of 7 images missing alt text). Adding descriptive alt attributes improves accessibility for screen readers and helps search engines understand image content.
  4. Recommended ACCESSIBILITY: 2 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (2 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Informational META: Title too short (18 chars, recommended min 30)
    The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (6.8%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (177 KB, recommended <100KB)
    The page weighs 177 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2026/02/24/the-react-foundation The React Foundation: A New Home for React... 200 422 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended META: Title too long (81 chars, recommended max 60)
    The title tag is 81 characters. Search engines typically display up to 60 characters. Trimming the title would ensure it appears fully in results.
  3. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  4. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  5. Recommended ACCESSIBILITY: 4 of 5 images missing alt text
    Some images are missing alt text (4 of 5 images missing alt text). Adding descriptive alt attributes improves accessibility for screen readers and helps search engines understand image content.
  6. Recommended ACCESSIBILITY: 4 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (4 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  7. Informational CONTENT: Very low text-to-HTML ratio (3.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
▶community/team Meet the Team – React 200 1846 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended ACCESSIBILITY: 164 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (164 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (21 chars, recommended min 30)
    The title tag is only 21 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (2.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (397 KB, recommended <100KB)
    The page weighs 397 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn Quick Start – React 200 2771 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (19 chars, recommended min 30)
    The title tag is only 19 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (258 KB, recommended <100KB)
    The page weighs 258 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/conditional-rendering Conditional Rendering – React 200 2697 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (29 chars, recommended min 30)
    The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (4.7%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (283 KB, recommended <100KB)
    The page weighs 283 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/creating-a-react-app Creating a React App – React 200 1226 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (28 chars, recommended min 30)
    The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.2%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (142 KB, recommended <100KB)
    The page weighs 142 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/describing-the-ui Describing the UI – React 200 2212 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (25 chars, recommended min 30)
    The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (4.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (270 KB, recommended <100KB)
    The page weighs 270 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/editor-setup Editor Setup – React 200 774 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (20 chars, recommended min 30)
    The title tag is only 20 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (4.2%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (113 KB, recommended <100KB)
    The page weighs 113 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/escape-hatches Escape Hatches – React 200 3801 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (22 chars, recommended min 30)
    The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.8%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (336 KB, recommended <100KB)
    The page weighs 336 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/importing-and-exporting-components Importing and Exporting Components – React 200 1574 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 1 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (1 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  6. Informational CONTENT: Very low text-to-HTML ratio (4.6%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (197 KB, recommended <100KB)
    The page weighs 197 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/keeping-components-pure Keeping Components Pure – React 200 2344 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 1 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (1 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.5%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (231 KB, recommended <100KB)
    The page weighs 231 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/managing-state Managing State – React 200 3120 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (22 chars, recommended min 30)
    The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.3%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (301 KB, recommended <100KB)
    The page weighs 301 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/passing-props-to-a-component Passing Props to a Component – React 200 2329 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 1 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (1 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  6. Informational CONTENT: Very low text-to-HTML ratio (4.6%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (260 KB, recommended <100KB)
    The page weighs 260 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/queueing-a-series-of-state-updates Queueing a Series of State Updates – React 200 2251 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 1 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (1 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  6. Informational CONTENT: Very low text-to-HTML ratio (4.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (228 KB, recommended <100KB)
    The page weighs 228 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/react-compiler/incremental-adoption Incremental Adoption – React 200 1266 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (28 chars, recommended min 30)
    The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.3%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (150 KB, recommended <100KB)
    The page weighs 150 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/react-compiler/installation Installation – React 200 1326 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (20 chars, recommended min 30)
    The title tag is only 20 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (4.5%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (182 KB, recommended <100KB)
    The page weighs 182 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/react-compiler/introduction Introduction – React 200 1723 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (20 chars, recommended min 30)
    The title tag is only 20 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (6.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (162 KB, recommended <100KB)
    The page weighs 162 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/reacting-to-input-with-state Reacting to Input with State – React 200 3219 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 4 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (4 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (292 KB, recommended <100KB)
    The page weighs 292 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/referencing-values-with-refs Referencing Values with Refs – React 200 2588 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended ACCESSIBILITY: 1 images missing width/height (layout shift risk)
    Some images lack explicit dimensions (1 images missing width/height (layout shift risk)). If images aren't already sized via CSS, adding width and height attributes (or CSS aspect-ratio) helps prevent layout shifts during page load.
  5. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.5%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (248 KB, recommended <100KB)
    The page weighs 248 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/rendering-lists Rendering Lists – React 200 2466 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (23 chars, recommended min 30)
    The title tag is only 23 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (4.8%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (265 KB, recommended <100KB)
    The page weighs 265 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/responding-to-events Responding to Events – React 200 3174 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (28 chars, recommended min 30)
    The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (321 KB, recommended <100KB)
    The page weighs 321 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/typescript Using TypeScript – React 200 3111 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (24 chars, recommended min 30)
    The title tag is only 24 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (283 KB, recommended <100KB)
    The page weighs 283 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/your-first-component Your First Component – React 200 1738 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (28 chars, recommended min 30)
    The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.1%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (198 KB, recommended <100KB)
    The page weighs 198 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react-compiler/configuration Configuration – React 200 628 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (21 chars, recommended min 30)
    The title tag is only 21 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (2.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (164 KB, recommended <100KB)
    The page weighs 164 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/usecontext useContext – React 200 2908 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (18 chars, recommended min 30)
    The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  6. Informational CONTENT: Very low text-to-HTML ratio (4.8%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (341 KB, recommended <100KB)
    The page weighs 341 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/useimperativehandle useImperativeHandle – React 200 1226 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (27 chars, recommended min 30)
    The title tag is only 27 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  6. Informational CONTENT: Very low text-to-HTML ratio (3.6%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (208 KB, recommended <100KB)
    The page weighs 208 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/usereducer useReducer – React 200 3730 7 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (18 chars, recommended min 30)
    The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational URL: Contains uppercase characters
    The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
  6. Informational CONTENT: Very low text-to-HTML ratio (5.6%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  7. Informational PERFORMANCE: Large page (357 KB, recommended <100KB)
    The page weighs 357 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2022/03/29/react-v18 React v18.0 – React 200 3968 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Informational META: Title too short (19 chars, recommended min 30)
    The title tag is only 19 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (8.8%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (8.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (266 KB, recommended <100KB)
    The page weighs 266 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2024/12/05/react-19 React v19 – React 200 5063 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Informational META: Title too short (17 chars, recommended min 30)
    The title tag is only 17 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (9.1%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (9.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (310 KB, recommended <100KB)
    The page weighs 310 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2025/10/07/react-compiler-1 React Compiler v1.0 – React 200 1886 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Informational META: Title too short (27 chars, recommended min 30)
    The title tag is only 27 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (7.2%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (161 KB, recommended <100KB)
    The page weighs 161 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components Denial of Service and Source Code Exposure in... 200 1283 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended META: Title too long (77 chars, recommended max 60)
    The title tag is 77 characters. Search engines typically display up to 60 characters. Trimming the title would ensure it appears fully in results.
  3. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  4. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  5. Informational CONTENT: Very low text-to-HTML ratio (6.3%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (130 KB, recommended <100KB)
    The page weighs 130 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶community React Community – React 200 288 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended THIN CONTENT: Only 288 words
    This page has limited text content (288 words). Expanding the content could improve its relevance for search queries and provide more value to visitors.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (23 chars, recommended min 30)
    The title tag is only 23 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (2.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
▶community/docs-contributors Docs Contributors – React 200 273 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended THIN CONTENT: Only 273 words
    This page has limited text content (273 words). Expanding the content could improve its relevance for search queries and provide more value to visitors.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational META: Title too short (25 chars, recommended min 30)
    The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  6. Informational CONTENT: Very low text-to-HTML ratio (2.0%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
▶learn/add-react-to-an-existing-project Add React to an Existing Project – React 200 1389 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (5.2%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (156 KB, recommended <100KB)
    The page weighs 156 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/build-a-react-app-from-scratch Build a React app from Scratch – React 200 1930 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (7.3%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (157 KB, recommended <100KB)
    The page weighs 157 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/choosing-the-state-structure Choosing the State Structure – React 200 6065 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (5.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (498 KB, recommended <100KB)
    The page weighs 498 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/extracting-state-logic-into-a-reducer Extracting State Logic into a Reducer – React 200 3885 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (5.5%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (363 KB, recommended <100KB)
    The page weighs 363 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/installation Installation – React 200 604 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (20 chars, recommended min 30)
    The title tag is only 20 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (3.0%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (113 KB, recommended <100KB)
    The page weighs 113 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/javascript-in-jsx-with-curly-braces JavaScript in JSX with Curly Braces – React 200 1567 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (3.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (218 KB, recommended <100KB)
    The page weighs 218 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/lifecycle-of-reactive-effects Lifecycle of Reactive Effects – React 200 6095 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (7.7%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (430 KB, recommended <100KB)
    The page weighs 430 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/manipulating-the-dom-with-refs Manipulating the DOM with Refs – React 200 4011 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (5.6%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (353 KB, recommended <100KB)
    The page weighs 353 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/passing-data-deeply-with-context Passing Data Deeply with Context – React 200 3835 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (5.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (345 KB, recommended <100KB)
    The page weighs 345 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/preserving-and-resetting-state Preserving and Resetting State – React 200 5077 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (5.1%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (474 KB, recommended <100KB)
    The page weighs 474 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/react-compiler React Compiler – React 200 431 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (22 chars, recommended min 30)
    The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (2.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (103 KB, recommended <100KB)
    The page weighs 103 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/react-compiler/debugging Debugging and Troubleshooting – React 200 902 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (4.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (117 KB, recommended <100KB)
    The page weighs 117 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/removing-effect-dependencies Removing Effect Dependencies – React 200 7718 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (7.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (529 KB, recommended <100KB)
    The page weighs 529 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/reusing-logic-with-custom-hooks Reusing Logic with Custom Hooks – React 200 7486 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (6.5%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (595 KB, recommended <100KB)
    The page weighs 595 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/scaling-up-with-reducer-and-context Scaling Up with Reducer and Context – React 200 3060 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (5.2%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (293 KB, recommended <100KB)
    The page weighs 293 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/separating-events-from-effects Separating Events from Effects – React 200 5553 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (6.7%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (412 KB, recommended <100KB)
    The page weighs 412 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/sharing-state-between-components Sharing State Between Components – React 200 2460 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (5.5%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (233 KB, recommended <100KB)
    The page weighs 233 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/state-a-components-memory State: A Component's Memory – React 200 3987 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (6.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (338 KB, recommended <100KB)
    The page weighs 338 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/synchronizing-with-effects Synchronizing with Effects – React 200 7848 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (8.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (8.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (499 KB, recommended <100KB)
    The page weighs 499 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/understanding-your-ui-as-a-tree Understanding Your UI as a Tree – React 200 1538 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (5.7%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (163 KB, recommended <100KB)
    The page weighs 163 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/updating-arrays-in-state Updating Arrays in State – React 200 4487 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (5.3%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (394 KB, recommended <100KB)
    The page weighs 394 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/updating-objects-in-state Updating Objects in State – React 200 4058 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (5.7%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (355 KB, recommended <100KB)
    The page weighs 355 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/writing-markup-with-jsx Writing Markup with JSX – React 200 1599 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (4.7%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (189 KB, recommended <100KB)
    The page weighs 189 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/you-might-not-need-an-effect You Might Not Need an Effect – React 200 7437 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  5. Informational CONTENT: Very low text-to-HTML ratio (9.1%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (9.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (424 KB, recommended <100KB)
    The page weighs 424 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react-compiler/compiling-libraries Compiling Libraries – React 200 745 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (27 chars, recommended min 30)
    The title tag is only 27 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (3.3%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (170 KB, recommended <100KB)
    The page weighs 170 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react-compiler/directives Directives – React 200 970 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (18 chars, recommended min 30)
    The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (3.5%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (191 KB, recommended <100KB)
    The page weighs 191 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react-dom React DOM APIs – React 200 588 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (22 chars, recommended min 30)
    The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (2.8%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (158 KB, recommended <100KB)
    The page weighs 158 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react-dom/client Client React DOM APIs – React 200 370 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (29 chars, recommended min 30)
    The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (2.2%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (138 KB, recommended <100KB)
    The page weighs 138 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react-dom/components React DOM Components – React 200 1097 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (28 chars, recommended min 30)
    The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (2.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (323 KB, recommended <100KB)
    The page weighs 323 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react-dom/server Server React DOM APIs – React 200 464 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (29 chars, recommended min 30)
    The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (2.5%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (149 KB, recommended <100KB)
    The page weighs 149 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/apis Built-in React APIs – React 200 518 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (27 chars, recommended min 30)
    The title tag is only 27 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (2.6%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (149 KB, recommended <100KB)
    The page weighs 149 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/hooks Built-in React Hooks – React 200 1014 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (28 chars, recommended min 30)
    The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (3.9%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (173 KB, recommended <100KB)
    The page weighs 173 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/legacy Legacy React APIs – React 200 455 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (25 chars, recommended min 30)
    The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (2.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (150 KB, recommended <100KB)
    The page weighs 150 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶versions React Versions – React 200 1078 6 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (22 chars, recommended min 30)
    The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (3.1%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  6. Informational PERFORMANCE: Large page (228 KB, recommended <100KB)
    The page weighs 228 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog React Blog – React 200 1347 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Informational META: Title too short (18 chars, recommended min 30)
    The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  4. Informational CONTENT: Very low text-to-HTML ratio (7.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  5. Informational PERFORMANCE: Large page (104 KB, recommended <100KB)
    The page weighs 104 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2022/03/08/react-18-upgrade-guide How to Upgrade to React 18 – React 200 2837 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Informational CONTENT: Very low text-to-HTML ratio (9.2%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (9.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  5. Informational PERFORMANCE: Large page (177 KB, recommended <100KB)
    The page weighs 177 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2024/04/25/react-19-upgrade-guide React 19 Upgrade Guide – React 200 3863 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Informational CONTENT: Very low text-to-HTML ratio (7.0%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  5. Informational PERFORMANCE: Large page (320 KB, recommended <100KB)
    The page weighs 320 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2024/10/21/react-compiler-beta-release React Compiler Beta Release – React 200 1497 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended STRUCTURE: Heading hierarchy skips levels
    The heading structure skips levels (e.g., H1 directly to H3). Maintaining a logical hierarchy (H1 → H2 → H3) helps search engines understand content structure.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Informational CONTENT: Very low text-to-HTML ratio (7.3%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  5. Informational PERFORMANCE: Large page (124 KB, recommended <100KB)
    The page weighs 124 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2025/12/03/critical-security-vulnerability-in-react-server-components Critical Security Vulnerability in React... 200 1164 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended META: Title too long (66 chars, recommended max 60)
    The title tag is 66 characters. Search engines typically display up to 60 characters. Trimming the title would ensure it appears fully in results.
  3. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  4. Informational CONTENT: Very low text-to-HTML ratio (5.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  5. Informational PERFORMANCE: Large page (129 KB, recommended <100KB)
    The page weighs 129 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2026/09/09/react-19-3 React 19.3 – React 200 4365 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Informational META: Title too short (18 chars, recommended min 30)
    The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  4. Informational CONTENT: Very low text-to-HTML ratio (6.4%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  5. Informational PERFORMANCE: Large page (374 KB, recommended <100KB)
    The page weighs 374 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶community/acknowledgements Acknowledgements – React 200 344 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (24 chars, recommended min 30)
    The title tag is only 24 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (2.2%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
▶community/translations Translations – React 200 457 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (20 chars, recommended min 30)
    The title tag is only 20 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (2.8%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
▶community/versioning-policy Versioning Policy – React 200 2331 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (25 chars, recommended min 30)
    The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational PERFORMANCE: Large page (131 KB, recommended <100KB)
    The page weighs 131 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶learn/setup Setup – React 200 405 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational META: Title too short (13 chars, recommended min 30)
    The title tag is only 13 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  5. Informational CONTENT: Very low text-to-HTML ratio (2.6%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
▶reference/react React Reference Overview – React 200 637 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational CONTENT: Very low text-to-HTML ratio (3.1%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  5. Informational PERFORMANCE: Large page (152 KB, recommended <100KB)
    The page weighs 152 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶reference/react/components Built-in React Components – React 200 359 5 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Recommended LINKS: 1 JavaScript-only links (not crawlable)
    Some links use JavaScript instead of standard URLs (1 JavaScript-only links (not crawlable)). Search engine crawlers cannot follow JavaScript links, which may prevent those destination pages from being discovered and indexed.
  4. Informational CONTENT: Very low text-to-HTML ratio (2.1%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
  5. Informational PERFORMANCE: Large page (140 KB, recommended <100KB)
    The page weighs 140 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
▶blog/2021/06/08/the-plan-for-react-18 The Plan for React 18 – React 200 948 4 At Risk Indexable
  1. Pre-Launch Priority MISSING: Meta description
    Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
  2. Recommended MISSING: No structured data (JSON-LD)
    Adding JSON-LD structured data (schema markup) could enhance this page's search result appearance with rich snippets like star ratings or business info.
  3. Informational META: Title too short (29 chars, recommended min 30)
    The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
  4. Informational CONTENT: Very low text-to-HTML ratio (6.3%)
    This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
Can search engines list these pages?

Of 100 URLs Webtrace requested or found, 100 send signals that allow indexing.

100 of 100
Indexable (signals allow it)
0
Not indexable
0
Unknown
0
Pages with conflicting signals
0
Redirects met
VerdictURLsShare
Signals allow indexing100100.0%

A raw HTML verdict: Webtrace reads the robots directives, canonicals, redirects and status codes in each answer. These are the signals that allow or prevent indexing, not a search engine's actual index status, and tags inserted by JavaScript are not seen. Googlebot's robots.txt rules are replayed from the copy stored with the crawl.

Conflicting signals

No page sends signals that contradict each other.

URLs that are not indexable or unknown (0)

Every URL the crawl requested sends signals that allow indexing.

Redirects the crawl met (0)

The crawl did not meet any redirect.

robots.txt

http://legacy.reactjs.org/robots.txt: parsed -- its rules apply HTTP 200, 33 bytes

Show the file (2 lines) 
User-agent: *
Disallow: /version/

http://react.dev/robots.txt: parsed -- its rules apply HTTP 200, 24 bytes

Show the file (2 lines) 
User-agent: *
Disallow:

http://www.react.dev/robots.txt: parsed -- its rules apply HTTP 200, 24 bytes

Show the file (2 lines) 
User-agent: *
Disallow:

https://legacy.reactjs.org/robots.txt: parsed -- its rules apply HTTP 200, 33 bytes

Show the file (2 lines) 
User-agent: *
Disallow: /version/

https://react.dev/robots.txt: parsed -- its rules apply HTTP 200, 24 bytes

Show the file (2 lines) 
User-agent: *
Disallow:

https://www.react.dev/robots.txt: parsed -- its rules apply HTTP 200, 24 bytes

Show the file (2 lines) 
User-agent: *
Disallow:
Sections: Site-Wide Achievements Site-Wide Findings Pre-Launch Priority (99) Recommended (283) Informational (272) Implemented Well
Site-Wide Site-Wide Achievements (4) ▲ Sections

Cross-page analysis confirms these site-wide SEO strengths.

site-wide 100% HTTPS internal links -- 100%
All internal links use HTTPS, ensuring a consistent secure experience.
site-wide No orphan pages -- All linked
Every page has at least one inbound internal link.
site-wide Fast average response time -- 102ms
The site's average server response time is excellent.
site-wide Strong average content depth -- 2687 words avg
The site maintains substantial content across pages.
Site-Wide Site-Wide Findings (2) ▲ Sections

Cross-page analysis identified these site-wide patterns worth reviewing.

Finding Recommendation
Recommended SITE: 2 pages share duplicate title "Installation – React"
▶ 2 affected pages
Site-wide observation: 2 pages share duplicate title "Installation – React".
Recommended SITE: 2 pages share duplicate H1 "Installation"
▶ 2 affected pages
Site-wide observation: 2 pages share duplicate H1 "Installation".
Pre-Launch Priority Pre-Launch Priority (99 findings across 99 pages) ▲ Sections
blog (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2021/06/08/the-plan-for-react-18 (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2022/03/08/react-18-upgrade-guide (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2022/03/29/react-v18 (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2023/03/16/introducing-react-dev (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2024/04/25/react-19-upgrade-guide (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2024/10/21/react-compiler-beta-release (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2024/12/05/react-19 (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2025/10/01/react-19-2 (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2025/10/07/react-compiler-1 (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2025/12/03/critical-security-vulnerability-in-react-server-components (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2026/02/24/the-react-foundation (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
blog/2026/09/09/react-19-3 (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
community (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
community/acknowledgements (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
community/docs-contributors (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
community/team (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
community/translations (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
community/versioning-policy (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/add-react-to-an-existing-project (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/adding-interactivity (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/build-a-react-app-from-scratch (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/choosing-the-state-structure (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/conditional-rendering (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/creating-a-react-app (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/describing-the-ui (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/editor-setup (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/escape-hatches (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/extracting-state-logic-into-a-reducer (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/importing-and-exporting-components (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/installation (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/javascript-in-jsx-with-curly-braces (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/keeping-components-pure (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/lifecycle-of-reactive-effects (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/managing-state (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/manipulating-the-dom-with-refs (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/passing-data-deeply-with-context (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/passing-props-to-a-component (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/preserving-and-resetting-state (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/queueing-a-series-of-state-updates (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/react-compiler (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/react-compiler/debugging (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/react-compiler/incremental-adoption (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/react-compiler/installation (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/react-compiler/introduction (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/react-developer-tools (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/reacting-to-input-with-state (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/referencing-values-with-refs (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/removing-effect-dependencies (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/render-and-commit (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/rendering-lists (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/responding-to-events (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/reusing-logic-with-custom-hooks (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/scaling-up-with-reducer-and-context (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/separating-events-from-effects (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/setup (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/sharing-state-between-components (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/state-a-components-memory (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/state-as-a-snapshot (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/synchronizing-with-effects (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/thinking-in-react (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/tutorial-tic-tac-toe (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/typescript (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/understanding-your-ui-as-a-tree (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/updating-arrays-in-state (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/updating-objects-in-state (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/writing-markup-with-jsx (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/you-might-not-need-an-effect (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
learn/your-first-component (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react-compiler/compiling-libraries (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react-compiler/configuration (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react-compiler/directives (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react-dom (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react-dom/client (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react-dom/components (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react-dom/server (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/apis (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/components (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/hooks (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/legacy (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/useactionstate (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/usecallback (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/usecontext (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/usedebugvalue (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/usedeferredvalue (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/useeffect (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/useeffectevent (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/useid (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/useimperativehandle (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/useinsertioneffect (1 findings)
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Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/uselayouteffect (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/usememo (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/useoptimistic (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/usereducer (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
reference/react/usestate (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
versions (1 findings)
▶
Finding Recommendation
MISSING: Meta description Adding a meta description would strengthen this page's search snippet and give users a better preview of what they'll find.
Informational Informational (272 findings across 100 pages) ▲ Sections
/ (4 findings)
▶
Finding Recommendation
META: Title too short (5 chars, recommended min 30) The title tag is only 5 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
MULTIPLE H1: 2 H1 tags found This page has more than one H1 heading. While not critical, using a single H1 helps search engines understand the page's primary topic more clearly.
CONTENT: Very low text-to-HTML ratio (3.0%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (266 KB, recommended <100KB) The page weighs 266 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/useactionstate (4 findings)
▶
Finding Recommendation
META: Title too short (22 chars, recommended min 30) The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (6.0%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (475 KB, recommended <100KB) The page weighs 475 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/usecallback (4 findings)
▶
Finding Recommendation
META: Title too short (19 chars, recommended min 30) The title tag is only 19 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (6.7%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (358 KB, recommended <100KB) The page weighs 358 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/usecontext (4 findings)
▶
Finding Recommendation
META: Title too short (18 chars, recommended min 30) The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (4.8%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (341 KB, recommended <100KB) The page weighs 341 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/usedebugvalue (4 findings)
▶
Finding Recommendation
META: Title too short (21 chars, recommended min 30) The title tag is only 21 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (3.0%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (176 KB, recommended <100KB) The page weighs 176 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/usedeferredvalue (4 findings)
▶
Finding Recommendation
META: Title too short (24 chars, recommended min 30) The title tag is only 24 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (5.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (296 KB, recommended <100KB) The page weighs 296 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/useeffect (4 findings)
▶
Finding Recommendation
META: Title too short (17 chars, recommended min 30) The title tag is only 17 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (7.0%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (587 KB, recommended <100KB) The page weighs 587 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/useeffectevent (4 findings)
▶
Finding Recommendation
META: Title too short (22 chars, recommended min 30) The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (5.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (303 KB, recommended <100KB) The page weighs 303 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/useid (4 findings)
▶
Finding Recommendation
META: Title too short (13 chars, recommended min 30) The title tag is only 13 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (3.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (235 KB, recommended <100KB) The page weighs 235 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/useimperativehandle (4 findings)
▶
Finding Recommendation
META: Title too short (27 chars, recommended min 30) The title tag is only 27 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (3.6%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (208 KB, recommended <100KB) The page weighs 208 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/useinsertioneffect (4 findings)
▶
Finding Recommendation
META: Title too short (26 chars, recommended min 30) The title tag is only 26 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (4.2%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (182 KB, recommended <100KB) The page weighs 182 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/uselayouteffect (4 findings)
▶
Finding Recommendation
META: Title too short (23 chars, recommended min 30) The title tag is only 23 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (5.1%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (256 KB, recommended <100KB) The page weighs 256 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/usememo (4 findings)
▶
Finding Recommendation
META: Title too short (15 chars, recommended min 30) The title tag is only 15 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (7.1%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (445 KB, recommended <100KB) The page weighs 445 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/useoptimistic (4 findings)
▶
Finding Recommendation
META: Title too short (21 chars, recommended min 30) The title tag is only 21 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (5.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (461 KB, recommended <100KB) The page weighs 461 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/usereducer (4 findings)
▶
Finding Recommendation
META: Title too short (18 chars, recommended min 30) The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (5.6%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (357 KB, recommended <100KB) The page weighs 357 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/usestate (4 findings)
▶
Finding Recommendation
META: Title too short (16 chars, recommended min 30) The title tag is only 16 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
URL: Contains uppercase characters The URL contains uppercase characters. Lowercase URLs are preferred as they prevent duplicate content issues (some servers treat case differently) and are easier for users to type and remember.
CONTENT: Very low text-to-HTML ratio (5.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (431 KB, recommended <100KB) The page weighs 431 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog (3 findings)
▶
Finding Recommendation
META: Title too short (18 chars, recommended min 30) The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (7.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (104 KB, recommended <100KB) The page weighs 104 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2022/03/29/react-v18 (3 findings)
▶
Finding Recommendation
META: Title too short (19 chars, recommended min 30) The title tag is only 19 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (8.8%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (8.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (266 KB, recommended <100KB) The page weighs 266 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2023/03/16/introducing-react-dev (3 findings)
▶
Finding Recommendation
META: Title too short (29 chars, recommended min 30) The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (6.5%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (222 KB, recommended <100KB) The page weighs 222 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2024/12/05/react-19 (3 findings)
▶
Finding Recommendation
META: Title too short (17 chars, recommended min 30) The title tag is only 17 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (9.1%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (9.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (310 KB, recommended <100KB) The page weighs 310 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2025/10/01/react-19-2 (3 findings)
▶
Finding Recommendation
META: Title too short (18 chars, recommended min 30) The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (6.8%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (177 KB, recommended <100KB) The page weighs 177 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2025/10/07/react-compiler-1 (3 findings)
▶
Finding Recommendation
META: Title too short (27 chars, recommended min 30) The title tag is only 27 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (7.2%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (161 KB, recommended <100KB) The page weighs 161 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2026/09/09/react-19-3 (3 findings)
▶
Finding Recommendation
META: Title too short (18 chars, recommended min 30) The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (6.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (374 KB, recommended <100KB) The page weighs 374 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
community/team (3 findings)
▶
Finding Recommendation
META: Title too short (21 chars, recommended min 30) The title tag is only 21 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (397 KB, recommended <100KB) The page weighs 397 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn (3 findings)
▶
Finding Recommendation
META: Title too short (19 chars, recommended min 30) The title tag is only 19 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (5.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (258 KB, recommended <100KB) The page weighs 258 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/adding-interactivity (3 findings)
▶
Finding Recommendation
META: Title too short (28 chars, recommended min 30) The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (4.8%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (297 KB, recommended <100KB) The page weighs 297 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/conditional-rendering (3 findings)
▶
Finding Recommendation
META: Title too short (29 chars, recommended min 30) The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (4.7%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (283 KB, recommended <100KB) The page weighs 283 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/creating-a-react-app (3 findings)
▶
Finding Recommendation
META: Title too short (28 chars, recommended min 30) The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (5.2%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (142 KB, recommended <100KB) The page weighs 142 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/describing-the-ui (3 findings)
▶
Finding Recommendation
META: Title too short (25 chars, recommended min 30) The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (4.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (270 KB, recommended <100KB) The page weighs 270 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/editor-setup (3 findings)
▶
Finding Recommendation
META: Title too short (20 chars, recommended min 30) The title tag is only 20 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (4.2%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (113 KB, recommended <100KB) The page weighs 113 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/escape-hatches (3 findings)
▶
Finding Recommendation
META: Title too short (22 chars, recommended min 30) The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (5.8%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (336 KB, recommended <100KB) The page weighs 336 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/installation (3 findings)
▶
Finding Recommendation
META: Title too short (20 chars, recommended min 30) The title tag is only 20 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (3.0%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (113 KB, recommended <100KB) The page weighs 113 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/managing-state (3 findings)
▶
Finding Recommendation
META: Title too short (22 chars, recommended min 30) The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (5.3%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (301 KB, recommended <100KB) The page weighs 301 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/react-compiler (3 findings)
▶
Finding Recommendation
META: Title too short (22 chars, recommended min 30) The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (103 KB, recommended <100KB) The page weighs 103 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/react-compiler/incremental-adoption (3 findings)
▶
Finding Recommendation
META: Title too short (28 chars, recommended min 30) The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (5.3%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (150 KB, recommended <100KB) The page weighs 150 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/react-compiler/installation (3 findings)
▶
Finding Recommendation
META: Title too short (20 chars, recommended min 30) The title tag is only 20 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (4.5%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (182 KB, recommended <100KB) The page weighs 182 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/react-compiler/introduction (3 findings)
▶
Finding Recommendation
META: Title too short (20 chars, recommended min 30) The title tag is only 20 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (6.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (162 KB, recommended <100KB) The page weighs 162 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/react-developer-tools (3 findings)
▶
Finding Recommendation
META: Title too short (29 chars, recommended min 30) The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (3.0%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (107 KB, recommended <100KB) The page weighs 107 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/render-and-commit (3 findings)
▶
Finding Recommendation
META: Title too short (25 chars, recommended min 30) The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (4.7%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (167 KB, recommended <100KB) The page weighs 167 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/rendering-lists (3 findings)
▶
Finding Recommendation
META: Title too short (23 chars, recommended min 30) The title tag is only 23 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (4.8%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (265 KB, recommended <100KB) The page weighs 265 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/responding-to-events (3 findings)
▶
Finding Recommendation
META: Title too short (28 chars, recommended min 30) The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (5.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (321 KB, recommended <100KB) The page weighs 321 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/state-as-a-snapshot (3 findings)
▶
Finding Recommendation
META: Title too short (27 chars, recommended min 30) The title tag is only 27 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (5.2%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (227 KB, recommended <100KB) The page weighs 227 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/thinking-in-react (3 findings)
▶
Finding Recommendation
META: Title too short (25 chars, recommended min 30) The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (7.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (278 KB, recommended <100KB) The page weighs 278 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/tutorial-tic-tac-toe (3 findings)
▶
Finding Recommendation
META: Title too short (29 chars, recommended min 30) The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (8.1%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (8.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (940 KB, recommended <100KB) The page weighs 940 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/typescript (3 findings)
▶
Finding Recommendation
META: Title too short (24 chars, recommended min 30) The title tag is only 24 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (5.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (283 KB, recommended <100KB) The page weighs 283 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/your-first-component (3 findings)
▶
Finding Recommendation
META: Title too short (28 chars, recommended min 30) The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (5.1%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (198 KB, recommended <100KB) The page weighs 198 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react-compiler/compiling-libraries (3 findings)
▶
Finding Recommendation
META: Title too short (27 chars, recommended min 30) The title tag is only 27 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (3.3%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (170 KB, recommended <100KB) The page weighs 170 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react-compiler/configuration (3 findings)
▶
Finding Recommendation
META: Title too short (21 chars, recommended min 30) The title tag is only 21 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (164 KB, recommended <100KB) The page weighs 164 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react-compiler/directives (3 findings)
▶
Finding Recommendation
META: Title too short (18 chars, recommended min 30) The title tag is only 18 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (3.5%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (191 KB, recommended <100KB) The page weighs 191 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react-dom (3 findings)
▶
Finding Recommendation
META: Title too short (22 chars, recommended min 30) The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.8%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (158 KB, recommended <100KB) The page weighs 158 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react-dom/client (3 findings)
▶
Finding Recommendation
META: Title too short (29 chars, recommended min 30) The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.2%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (138 KB, recommended <100KB) The page weighs 138 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react-dom/components (3 findings)
▶
Finding Recommendation
META: Title too short (28 chars, recommended min 30) The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (323 KB, recommended <100KB) The page weighs 323 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react-dom/server (3 findings)
▶
Finding Recommendation
META: Title too short (29 chars, recommended min 30) The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.5%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (149 KB, recommended <100KB) The page weighs 149 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/apis (3 findings)
▶
Finding Recommendation
META: Title too short (27 chars, recommended min 30) The title tag is only 27 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.6%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (149 KB, recommended <100KB) The page weighs 149 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/hooks (3 findings)
▶
Finding Recommendation
META: Title too short (28 chars, recommended min 30) The title tag is only 28 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (3.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (173 KB, recommended <100KB) The page weighs 173 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/legacy (3 findings)
▶
Finding Recommendation
META: Title too short (25 chars, recommended min 30) The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (150 KB, recommended <100KB) The page weighs 150 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
versions (3 findings)
▶
Finding Recommendation
META: Title too short (22 chars, recommended min 30) The title tag is only 22 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (3.1%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (228 KB, recommended <100KB) The page weighs 228 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2021/06/08/the-plan-for-react-18 (2 findings)
▶
Finding Recommendation
META: Title too short (29 chars, recommended min 30) The title tag is only 29 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (6.3%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
blog/2022/03/08/react-18-upgrade-guide (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (9.2%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (9.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (177 KB, recommended <100KB) The page weighs 177 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2024/04/25/react-19-upgrade-guide (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (7.0%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (320 KB, recommended <100KB) The page weighs 320 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2024/10/21/react-compiler-beta-release (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (7.3%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (124 KB, recommended <100KB) The page weighs 124 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2025/12/03/critical-security-vulnerability-in-react-server-components (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (129 KB, recommended <100KB) The page weighs 129 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (6.3%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (130 KB, recommended <100KB) The page weighs 130 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
community (2 findings)
▶
Finding Recommendation
META: Title too short (23 chars, recommended min 30) The title tag is only 23 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
community/acknowledgements (2 findings)
▶
Finding Recommendation
META: Title too short (24 chars, recommended min 30) The title tag is only 24 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.2%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
community/docs-contributors (2 findings)
▶
Finding Recommendation
META: Title too short (25 chars, recommended min 30) The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.0%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.0%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
community/translations (2 findings)
▶
Finding Recommendation
META: Title too short (20 chars, recommended min 30) The title tag is only 20 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.8%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.8%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
community/versioning-policy (2 findings)
▶
Finding Recommendation
META: Title too short (25 chars, recommended min 30) The title tag is only 25 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
PERFORMANCE: Large page (131 KB, recommended <100KB) The page weighs 131 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/add-react-to-an-existing-project (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.2%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (156 KB, recommended <100KB) The page weighs 156 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/build-a-react-app-from-scratch (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (7.3%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (157 KB, recommended <100KB) The page weighs 157 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/choosing-the-state-structure (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (498 KB, recommended <100KB) The page weighs 498 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/extracting-state-logic-into-a-reducer (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.5%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (363 KB, recommended <100KB) The page weighs 363 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/importing-and-exporting-components (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (4.6%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (197 KB, recommended <100KB) The page weighs 197 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/javascript-in-jsx-with-curly-braces (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (3.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (218 KB, recommended <100KB) The page weighs 218 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/keeping-components-pure (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.5%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (231 KB, recommended <100KB) The page weighs 231 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/lifecycle-of-reactive-effects (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (7.7%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (430 KB, recommended <100KB) The page weighs 430 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/manipulating-the-dom-with-refs (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.6%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (353 KB, recommended <100KB) The page weighs 353 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/passing-data-deeply-with-context (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (345 KB, recommended <100KB) The page weighs 345 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/passing-props-to-a-component (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (4.6%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (260 KB, recommended <100KB) The page weighs 260 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/preserving-and-resetting-state (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.1%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (474 KB, recommended <100KB) The page weighs 474 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/queueing-a-series-of-state-updates (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (4.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (228 KB, recommended <100KB) The page weighs 228 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/react-compiler/debugging (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (4.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (117 KB, recommended <100KB) The page weighs 117 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/reacting-to-input-with-state (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.9%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.9%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (292 KB, recommended <100KB) The page weighs 292 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/referencing-values-with-refs (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.5%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (248 KB, recommended <100KB) The page weighs 248 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/removing-effect-dependencies (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (7.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (7.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (529 KB, recommended <100KB) The page weighs 529 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/reusing-logic-with-custom-hooks (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (6.5%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (595 KB, recommended <100KB) The page weighs 595 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/scaling-up-with-reducer-and-context (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.2%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.2%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (293 KB, recommended <100KB) The page weighs 293 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/separating-events-from-effects (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (6.7%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (412 KB, recommended <100KB) The page weighs 412 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/setup (2 findings)
▶
Finding Recommendation
META: Title too short (13 chars, recommended min 30) The title tag is only 13 characters. A more descriptive title (30-60 chars) would better communicate the page's topic to both users and search engines.
CONTENT: Very low text-to-HTML ratio (2.6%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.6%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
learn/sharing-state-between-components (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.5%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.5%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (233 KB, recommended <100KB) The page weighs 233 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/state-a-components-memory (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (6.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (6.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (338 KB, recommended <100KB) The page weighs 338 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/synchronizing-with-effects (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (8.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (8.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (499 KB, recommended <100KB) The page weighs 499 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/understanding-your-ui-as-a-tree (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.7%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (163 KB, recommended <100KB) The page weighs 163 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/updating-arrays-in-state (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.3%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.3%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (394 KB, recommended <100KB) The page weighs 394 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/updating-objects-in-state (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (5.7%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (5.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (355 KB, recommended <100KB) The page weighs 355 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/writing-markup-with-jsx (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (4.7%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (4.7%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (189 KB, recommended <100KB) The page weighs 189 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
learn/you-might-not-need-an-effect (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (9.1%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (9.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (424 KB, recommended <100KB) The page weighs 424 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (3.1%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (152 KB, recommended <100KB) The page weighs 152 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
reference/react/components (2 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (2.1%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (2.1%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
PERFORMANCE: Large page (140 KB, recommended <100KB) The page weighs 140 KB. Reducing page size (target <100KB for HTML) through minification, removing unused code, or optimizing embedded content would improve load times.
blog/2026/02/24/the-react-foundation (1 findings)
▶
Finding Recommendation
CONTENT: Very low text-to-HTML ratio (3.4%) This page has a low text-to-HTML ratio (Very low text-to-HTML ratio (3.4%)). This may indicate heavy template markup or limited unique content. Increasing meaningful text content would strengthen the page's search relevance.
Implemented Well SEO Best Practices Implemented (2533 findings across 100 pages) ▲ Sections

These elements have been properly implemented, demonstrating strong SEO foundations. Click any page to expand its findings.

blog/2021/06/08/the-plan-for-react-18 (28 findings)
▶
meta Title tag present -- 29 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/blog/2021/06/08/the-plan-for-react-18
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- The Plan for React 18
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 948 words
The page has adequate content for search relevance.
content Strong content depth -- 948 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2021/06/08/the-plan-for-react-18/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 150ms
The server responded in under 500ms -- excellent performance.
performance Compact page size -- 89 KB
The page HTML is under 100KB, contributing to fast load times.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog (27 findings)
▶
meta Title tag present -- 18 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/blog
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React Blog
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 1347 words
The page has adequate content for search relevance.
content Strong content depth -- 1347 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 96ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2022/03/08/react-18-upgrade-guide (27 findings)
▶
meta Title tag present -- 34 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 34 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/blog/2022/03/08/react-18-upgrade-guide
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- How to Upgrade to React 18
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2837 words
The page has adequate content for search relevance.
content Strong content depth -- 2837 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2022/03/08/react-18-upgrade-guide/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 78ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2024/04/25/react-19-upgrade-guide (27 findings)
▶
meta Title tag present -- 30 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 30 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/blog/2024/04/25/react-19-upgrade-guide
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React 19 Upgrade Guide
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3863 words
The page has adequate content for search relevance.
content Strong content depth -- 3863 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2024/04/25/react-19-upgrade-guide/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 5 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 5 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 98ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2024/10/21/react-compiler-beta-release (27 findings)
▶
meta Title tag present -- 35 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 35 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/blog/2024/10/21/react-compiler-beta-release
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React Compiler Beta Release
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1497 words
The page has adequate content for search relevance.
content Strong content depth -- 1497 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2024/10/21/react-compiler-beta-release/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 232ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2025/12/03/critical-security-vulnerability-in-react-server-components (27 findings)
▶
meta Title tag present -- 66 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Critical Security Vulnerability in React Server Components
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 1164 words
The page has adequate content for search relevance.
content Strong content depth -- 1164 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2025/12/03/critical-security-vulnerability-in-react-server-components/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 60ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2026/09/09/react-19-3 (27 findings)
▶
meta Title tag present -- 18 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/blog/2026/09/09/react-19-3
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React 19.3
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 4365 words
The page has adequate content for search relevance.
content Strong content depth -- 4365 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2026/09/09/react-19-3/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 90ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
community/versioning-policy (27 findings)
▶
meta Title tag present -- 25 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/community/versioning-policy
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Versioning Policy
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 2331 words
The page has adequate content for search relevance.
content Strong content depth -- 2331 words
The page has substantial content, which tends to perform well in search.
content Healthy text-to-HTML ratio -- 10.8%
The page has a good balance of content vs. markup.
content Clean URL structure -- /community/versioning-policy/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 75ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react (27 findings)
▶
meta Title tag present -- 32 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 32 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/reference/react
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React Reference Overview
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 637 words
The page has adequate content for search relevance.
content Strong content depth -- 637 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /reference/react/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 62ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2022/03/29/react-v18 (26 findings)
▶
meta Title tag present -- 19 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/blog/2022/03/29/react-v18
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React v18.0
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3968 words
The page has adequate content for search relevance.
content Strong content depth -- 3968 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2022/03/29/react-v18/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 132ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2024/12/05/react-19 (26 findings)
▶
meta Title tag present -- 17 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/blog/2024/12/05/react-19
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React v19
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 5063 words
The page has adequate content for search relevance.
content Strong content depth -- 5063 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2024/12/05/react-19/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 89ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2025/10/07/react-compiler-1 (26 findings)
▶
meta Title tag present -- 27 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/blog/2025/10/07/react-compiler-1
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React Compiler v1.0
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1886 words
The page has adequate content for search relevance.
content Strong content depth -- 1886 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2025/10/07/react-compiler-1/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 114ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components (26 findings)
▶
meta Title tag present -- 77 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Denial of Service and Source Code Exposure in React Server Components
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1283 words
The page has adequate content for search relevance.
content Strong content depth -- 1283 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 51ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
community/acknowledgements (26 findings)
▶
meta Title tag present -- 24 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/community/acknowledgements
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Acknowledgements
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 344 words
The page has adequate content for search relevance.
content Clean URL structure -- /community/acknowledgements/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 253ms
The server responded in under 500ms -- excellent performance.
performance Compact page size -- 98 KB
The page HTML is under 100KB, contributing to fast load times.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
community/translations (26 findings)
▶
meta Title tag present -- 20 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/community/translations
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Translations
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 457 words
The page has adequate content for search relevance.
content Clean URL structure -- /community/translations/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 65ms
The server responded in under 500ms -- excellent performance.
performance Compact page size -- 98 KB
The page HTML is under 100KB, contributing to fast load times.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/add-react-to-an-existing-project (26 findings)
▶
meta Title tag present -- 40 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 40 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/add-react-to-an-existing-project
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Add React to an Existing Project
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1389 words
The page has adequate content for search relevance.
content Strong content depth -- 1389 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/add-react-to-an-existing-project/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 59ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/build-a-react-app-from-scratch (26 findings)
▶
meta Title tag present -- 38 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 38 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/build-a-react-app-from-scratch
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Build a React app from Scratch
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1930 words
The page has adequate content for search relevance.
content Strong content depth -- 1930 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/build-a-react-app-from-scratch/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 115ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/choosing-the-state-structure (26 findings)
▶
meta Title tag present -- 36 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 36 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/choosing-the-state-structure
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Choosing the State Structure
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 6065 words
The page has adequate content for search relevance.
content Strong content depth -- 6065 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/choosing-the-state-structure/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 208ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/extracting-state-logic-into-a-reducer (26 findings)
▶
meta Title tag present -- 45 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 45 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/extracting-state-logic-into-a-reducer
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Extracting State Logic into a Reducer
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3885 words
The page has adequate content for search relevance.
content Strong content depth -- 3885 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/extracting-state-logic-into-a-reducer/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 90ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/installation (26 findings)
▶
meta Title tag present -- 20 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/installation
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Installation
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 604 words
The page has adequate content for search relevance.
content Strong content depth -- 604 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/installation/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 73ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/javascript-in-jsx-with-curly-braces (26 findings)
▶
meta Title tag present -- 43 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 43 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/javascript-in-jsx-with-curly-braces
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- JavaScript in JSX with Curly Braces
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1567 words
The page has adequate content for search relevance.
content Strong content depth -- 1567 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/javascript-in-jsx-with-curly-braces/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 90ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/lifecycle-of-reactive-effects (26 findings)
▶
meta Title tag present -- 37 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 37 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/lifecycle-of-reactive-effects
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Lifecycle of Reactive Effects
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 6095 words
The page has adequate content for search relevance.
content Strong content depth -- 6095 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/lifecycle-of-reactive-effects/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 240ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/manipulating-the-dom-with-refs (26 findings)
▶
meta Title tag present -- 38 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 38 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/manipulating-the-dom-with-refs
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Manipulating the DOM with Refs
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 4011 words
The page has adequate content for search relevance.
content Strong content depth -- 4011 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/manipulating-the-dom-with-refs/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 202ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/passing-data-deeply-with-context (26 findings)
▶
meta Title tag present -- 40 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 40 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/passing-data-deeply-with-context
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Passing Data Deeply with Context
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3835 words
The page has adequate content for search relevance.
content Strong content depth -- 3835 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/passing-data-deeply-with-context/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 9 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 9 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 85ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/preserving-and-resetting-state (26 findings)
▶
meta Title tag present -- 38 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 38 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/preserving-and-resetting-state
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Preserving and Resetting State
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 5077 words
The page has adequate content for search relevance.
content Strong content depth -- 5077 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/preserving-and-resetting-state/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 25 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 25 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 100ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/react-compiler/debugging (26 findings)
▶
meta Title tag present -- 37 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 37 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/react-compiler/debugging
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Debugging and Troubleshooting
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 902 words
The page has adequate content for search relevance.
content Strong content depth -- 902 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/react-compiler/debugging/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 70ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/removing-effect-dependencies (26 findings)
▶
meta Title tag present -- 36 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 36 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/removing-effect-dependencies
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Removing Effect Dependencies
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 7718 words
The page has adequate content for search relevance.
content Strong content depth -- 7718 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/removing-effect-dependencies/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 85ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/reusing-logic-with-custom-hooks (26 findings)
▶
meta Title tag present -- 39 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 39 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/reusing-logic-with-custom-hooks
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Reusing Logic with Custom Hooks
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 7486 words
The page has adequate content for search relevance.
content Strong content depth -- 7486 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/reusing-logic-with-custom-hooks/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 95ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/scaling-up-with-reducer-and-context (26 findings)
▶
meta Title tag present -- 43 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 43 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/scaling-up-with-reducer-and-context
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Scaling Up with Reducer and Context
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3060 words
The page has adequate content for search relevance.
content Strong content depth -- 3060 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/scaling-up-with-reducer-and-context/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 107ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/separating-events-from-effects (26 findings)
▶
meta Title tag present -- 38 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 38 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/separating-events-from-effects
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Separating Events from Effects
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 5553 words
The page has adequate content for search relevance.
content Strong content depth -- 5553 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/separating-events-from-effects/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 84ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/setup (26 findings)
▶
meta Title tag present -- 13 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/setup
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Setup
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 405 words
The page has adequate content for search relevance.
content Clean URL structure -- /learn/setup/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 60ms
The server responded in under 500ms -- excellent performance.
performance Compact page size -- 98 KB
The page HTML is under 100KB, contributing to fast load times.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/sharing-state-between-components (26 findings)
▶
meta Title tag present -- 40 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 40 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/sharing-state-between-components
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Sharing State Between Components
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2460 words
The page has adequate content for search relevance.
content Strong content depth -- 2460 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/sharing-state-between-components/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 9 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 9 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 85ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/state-a-components-memory (26 findings)
▶
meta Title tag present -- 35 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 35 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/state-a-components-memory
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- State: A Component's Memory
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3987 words
The page has adequate content for search relevance.
content Strong content depth -- 3987 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/state-a-components-memory/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 119ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/synchronizing-with-effects (26 findings)
▶
meta Title tag present -- 34 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 34 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/synchronizing-with-effects
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Synchronizing with Effects
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 7848 words
The page has adequate content for search relevance.
content Strong content depth -- 7848 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/synchronizing-with-effects/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 83ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/understanding-your-ui-as-a-tree (26 findings)
▶
meta Title tag present -- 39 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 39 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/understanding-your-ui-as-a-tree
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Understanding Your UI as a Tree
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1538 words
The page has adequate content for search relevance.
content Strong content depth -- 1538 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/understanding-your-ui-as-a-tree/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 9 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 9 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 72ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/updating-arrays-in-state (26 findings)
▶
meta Title tag present -- 32 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 32 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/updating-arrays-in-state
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Updating Arrays in State
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 4487 words
The page has adequate content for search relevance.
content Strong content depth -- 4487 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/updating-arrays-in-state/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 96ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/updating-objects-in-state (26 findings)
▶
meta Title tag present -- 33 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 33 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/updating-objects-in-state
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Updating Objects in State
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 4058 words
The page has adequate content for search relevance.
content Strong content depth -- 4058 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/updating-objects-in-state/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 156ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/writing-markup-with-jsx (26 findings)
▶
meta Title tag present -- 31 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 31 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/writing-markup-with-jsx
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Writing Markup with JSX
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1599 words
The page has adequate content for search relevance.
content Strong content depth -- 1599 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/writing-markup-with-jsx/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 9 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 9 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 80ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/you-might-not-need-an-effect (26 findings)
▶
meta Title tag present -- 36 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 36 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/you-might-not-need-an-effect
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- You Might Not Need an Effect
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 7437 words
The page has adequate content for search relevance.
content Strong content depth -- 7437 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/you-might-not-need-an-effect/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 92ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react-compiler/compiling-libraries (26 findings)
▶
meta Title tag present -- 27 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react-compiler/compiling-libraries
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Compiling Libraries
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 745 words
The page has adequate content for search relevance.
content Strong content depth -- 745 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /reference/react-compiler/compiling-libraries/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 61ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react-compiler/directives (26 findings)
▶
meta Title tag present -- 18 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react-compiler/directives
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Directives
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 970 words
The page has adequate content for search relevance.
content Strong content depth -- 970 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /reference/react-compiler/directives/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 62ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react-dom/components (26 findings)
▶
meta Title tag present -- 28 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react-dom/components
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React DOM Components
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 1097 words
The page has adequate content for search relevance.
content Strong content depth -- 1097 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /reference/react-dom/components/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 82ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/components (26 findings)
▶
meta Title tag present -- 33 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 33 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/reference/react/components
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Built-in React Components
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 359 words
The page has adequate content for search relevance.
content Clean URL structure -- /reference/react/components/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 181ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/hooks (26 findings)
▶
meta Title tag present -- 28 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/hooks
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Built-in React Hooks
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 1014 words
The page has adequate content for search relevance.
content Strong content depth -- 1014 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /reference/react/hooks/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 74ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
versions (26 findings)
▶
meta Title tag present -- 22 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/versions
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React Versions
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 1078 words
The page has adequate content for search relevance.
content Strong content depth -- 1078 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /versions/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 72ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2023/03/16/introducing-react-dev (25 findings)
▶
meta Title tag present -- 29 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/blog/2023/03/16/introducing-react-dev
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Introducing react.dev
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2893 words
The page has adequate content for search relevance.
content Strong content depth -- 2893 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2023/03/16/introducing-react-dev/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 4 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 98ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2025/10/01/react-19-2 (25 findings)
▶
meta Title tag present -- 18 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/blog/2025/10/01/react-19-2
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React 19.2
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 2088 words
The page has adequate content for search relevance.
content Strong content depth -- 2088 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /blog/2025/10/01/react-19-2/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 59ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
community (25 findings)
▶
meta Title tag present -- 23 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/community
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React Community
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Clean URL structure -- /community/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 64ms
The server responded in under 500ms -- excellent performance.
performance Compact page size -- 76 KB
The page HTML is under 100KB, contributing to fast load times.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
community/docs-contributors (25 findings)
▶
meta Title tag present -- 25 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/community/docs-contributors
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Docs Contributors
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Clean URL structure -- /community/docs-contributors/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 76ms
The server responded in under 500ms -- excellent performance.
performance Compact page size -- 85 KB
The page HTML is under 100KB, contributing to fast load times.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
community/team (25 findings)
▶
meta Title tag present -- 21 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/community/team
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Meet the Team
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 1846 words
The page has adequate content for search relevance.
content Strong content depth -- 1846 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /community/team/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 165 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 102ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn (25 findings)
▶
meta Title tag present -- 19 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Quick Start
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2771 words
The page has adequate content for search relevance.
content Strong content depth -- 2771 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 9 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 9 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 84ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/conditional-rendering (25 findings)
▶
meta Title tag present -- 29 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/conditional-rendering
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Conditional Rendering
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2697 words
The page has adequate content for search relevance.
content Strong content depth -- 2697 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/conditional-rendering/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 95ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/creating-a-react-app (25 findings)
▶
meta Title tag present -- 28 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/creating-a-react-app
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Creating a React App
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1226 words
The page has adequate content for search relevance.
content Strong content depth -- 1226 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/creating-a-react-app/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 73ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/describing-the-ui (25 findings)
▶
meta Title tag present -- 25 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/describing-the-ui
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Describing the UI
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2212 words
The page has adequate content for search relevance.
content Strong content depth -- 2212 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/describing-the-ui/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 5 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 5 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 63ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/editor-setup (25 findings)
▶
meta Title tag present -- 20 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/editor-setup
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Editor Setup
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 774 words
The page has adequate content for search relevance.
content Strong content depth -- 774 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/editor-setup/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 64ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/escape-hatches (25 findings)
▶
meta Title tag present -- 22 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/escape-hatches
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Escape Hatches
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3801 words
The page has adequate content for search relevance.
content Strong content depth -- 3801 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/escape-hatches/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 82ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/importing-and-exporting-components (25 findings)
▶
meta Title tag present -- 42 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 42 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/importing-and-exporting-components
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Importing and Exporting Components
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1574 words
The page has adequate content for search relevance.
content Strong content depth -- 1574 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/importing-and-exporting-components/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 2 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 60ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/keeping-components-pure (25 findings)
▶
meta Title tag present -- 31 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 31 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/keeping-components-pure
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Keeping Components Pure
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2344 words
The page has adequate content for search relevance.
content Strong content depth -- 2344 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/keeping-components-pure/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 2 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 76ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/managing-state (25 findings)
▶
meta Title tag present -- 22 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/managing-state
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Managing State
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3120 words
The page has adequate content for search relevance.
content Strong content depth -- 3120 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/managing-state/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 116ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/passing-props-to-a-component (25 findings)
▶
meta Title tag present -- 36 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 36 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/passing-props-to-a-component
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Passing Props to a Component
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2329 words
The page has adequate content for search relevance.
content Strong content depth -- 2329 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/passing-props-to-a-component/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 2 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 82ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/queueing-a-series-of-state-updates (25 findings)
▶
meta Title tag present -- 42 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 42 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/queueing-a-series-of-state-updates
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Queueing a Series of State Updates
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2251 words
The page has adequate content for search relevance.
content Strong content depth -- 2251 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/queueing-a-series-of-state-updates/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 2 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 75ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/react-compiler (25 findings)
▶
meta Title tag present -- 22 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/react-compiler
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React Compiler
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 431 words
The page has adequate content for search relevance.
content Clean URL structure -- /learn/react-compiler/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 75ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/react-compiler/incremental-adoption (25 findings)
▶
meta Title tag present -- 28 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/react-compiler/incremental-adoption
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Incremental Adoption
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1266 words
The page has adequate content for search relevance.
content Strong content depth -- 1266 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/react-compiler/incremental-adoption/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 174ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/react-compiler/installation (25 findings)
▶
meta Title tag present -- 20 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/react-compiler/installation
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Installation
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1326 words
The page has adequate content for search relevance.
content Strong content depth -- 1326 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/react-compiler/installation/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 58ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/react-compiler/introduction (25 findings)
▶
meta Title tag present -- 20 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/react-compiler/introduction
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Introduction
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1723 words
The page has adequate content for search relevance.
content Strong content depth -- 1723 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/react-compiler/introduction/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 68ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/reacting-to-input-with-state (25 findings)
▶
meta Title tag present -- 36 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 36 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/reacting-to-input-with-state
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Reacting to Input with State
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3219 words
The page has adequate content for search relevance.
content Strong content depth -- 3219 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/reacting-to-input-with-state/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 7 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 77ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/referencing-values-with-refs (25 findings)
▶
meta Title tag present -- 36 chars
The page has a title tag, which is essential for search results.
meta Title length is ideal -- 36 chars
The title is within the recommended 30-60 character range for search results.
meta Canonical URL set -- https://react.dev/learn/referencing-values-with-refs
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Referencing Values with Refs
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2588 words
The page has adequate content for search relevance.
content Strong content depth -- 2588 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/referencing-values-with-refs/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 2 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 101ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/rendering-lists (25 findings)
▶
meta Title tag present -- 23 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/rendering-lists
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Rendering Lists
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2466 words
The page has adequate content for search relevance.
content Strong content depth -- 2466 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/rendering-lists/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 230ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/responding-to-events (25 findings)
▶
meta Title tag present -- 28 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/responding-to-events
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Responding to Events
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3174 words
The page has adequate content for search relevance.
content Strong content depth -- 3174 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/responding-to-events/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 77ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/typescript (25 findings)
▶
meta Title tag present -- 24 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/typescript
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Using TypeScript
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3111 words
The page has adequate content for search relevance.
content Strong content depth -- 3111 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/typescript/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 70ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/your-first-component (25 findings)
▶
meta Title tag present -- 28 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/your-first-component
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Your First Component
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1738 words
The page has adequate content for search relevance.
content Strong content depth -- 1738 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/your-first-component/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 83ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react-compiler/configuration (25 findings)
▶
meta Title tag present -- 21 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react-compiler/configuration
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Configuration
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 628 words
The page has adequate content for search relevance.
content Strong content depth -- 628 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /reference/react-compiler/configuration/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 166ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react-dom (25 findings)
▶
meta Title tag present -- 22 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react-dom
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React DOM APIs
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 588 words
The page has adequate content for search relevance.
content Clean URL structure -- /reference/react-dom/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 56ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react-dom/client (25 findings)
▶
meta Title tag present -- 29 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react-dom/client
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Client React DOM APIs
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 370 words
The page has adequate content for search relevance.
content Clean URL structure -- /reference/react-dom/client/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 166ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react-dom/server (25 findings)
▶
meta Title tag present -- 29 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react-dom/server
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Server React DOM APIs
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 464 words
The page has adequate content for search relevance.
content Clean URL structure -- /reference/react-dom/server/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 194ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/apis (25 findings)
▶
meta Title tag present -- 27 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/apis
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Built-in React APIs
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 518 words
The page has adequate content for search relevance.
content Clean URL structure -- /reference/react/apis/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 58ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/legacy (25 findings)
▶
meta Title tag present -- 25 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/legacy
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Legacy React APIs
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 455 words
The page has adequate content for search relevance.
content Clean URL structure -- /reference/react/legacy/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 189ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/usecontext (25 findings)
▶
meta Title tag present -- 18 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useContext
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useContext
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 2908 words
The page has adequate content for search relevance.
content Strong content depth -- 2908 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 140ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/useimperativehandle (25 findings)
▶
meta Title tag present -- 27 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useImperativeHandle
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useImperativeHandle
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 1226 words
The page has adequate content for search relevance.
content Strong content depth -- 1226 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 228ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/usereducer (25 findings)
▶
meta Title tag present -- 18 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useReducer
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useReducer
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 3730 words
The page has adequate content for search relevance.
content Strong content depth -- 3730 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 75ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
/ (24 findings)
▶
meta Title tag present -- 5 chars
The page has a title tag, which is essential for search results.
meta Meta description present -- 260 chars
The page has a meta description for search result snippets.
meta Canonical URL set -- https://react.dev/
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Sufficient content depth -- 1436 words
The page has adequate content for search relevance.
content Strong content depth -- 1436 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 90ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
blog/2026/02/24/the-react-foundation (24 findings)
▶
meta Title tag present -- 81 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/blog/2026/02/24/the-react-foundation
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- The React Foundation: A New Home for React Hosted by the Linux Foundation
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 422 words
The page has adequate content for search relevance.
content Clean URL structure -- /blog/2026/02/24/the-react-foundation/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 53ms
The server responded in under 500ms -- excellent performance.
performance Compact page size -- 76 KB
The page HTML is under 100KB, contributing to fast load times.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links All links are crawlable -- Crawlable
No JavaScript-only links -- search engines can follow all links.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/adding-interactivity (24 findings)
▶
meta Title tag present -- 28 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/adding-interactivity
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Adding Interactivity
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2886 words
The page has adequate content for search relevance.
content Strong content depth -- 2886 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/adding-interactivity/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 4 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 130ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/render-and-commit (24 findings)
▶
meta Title tag present -- 25 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/render-and-commit
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Render and Commit
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1314 words
The page has adequate content for search relevance.
content Strong content depth -- 1314 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/render-and-commit/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 8 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 59ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/thinking-in-react (24 findings)
▶
meta Title tag present -- 25 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/thinking-in-react
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Thinking in React
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 4277 words
The page has adequate content for search relevance.
content Strong content depth -- 4277 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/thinking-in-react/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have dimensions -- 3 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 68ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/tutorial-tic-tac-toe (24 findings)
▶
meta Title tag present -- 29 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/tutorial-tic-tac-toe
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- Tutorial: Tic-Tac-Toe
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 16585 words
The page has adequate content for search relevance.
content Strong content depth -- 16585 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/tutorial-tic-tac-toe/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 17 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 103ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/useactionstate (24 findings)
▶
meta Title tag present -- 22 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useActionState
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useActionState
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 5150 words
The page has adequate content for search relevance.
content Strong content depth -- 5150 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 82ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/usecallback (24 findings)
▶
meta Title tag present -- 19 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useCallback
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useCallback
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 4294 words
The page has adequate content for search relevance.
content Strong content depth -- 4294 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 127ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/usedebugvalue (24 findings)
▶
meta Title tag present -- 21 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useDebugValue
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useDebugValue
The page has exactly one H1 heading, clearly defining its main topic.
content Proper heading hierarchy -- Valid hierarchy
Headings follow a logical order (no skipped levels), aiding content structure.
content Sufficient content depth -- 749 words
The page has adequate content for search relevance.
content Strong content depth -- 749 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 2 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 195ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/usedeferredvalue (24 findings)
▶
meta Title tag present -- 24 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useDeferredValue
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useDeferredValue
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2762 words
The page has adequate content for search relevance.
content Strong content depth -- 2762 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 78ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/useeffect (24 findings)
▶
meta Title tag present -- 17 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useEffect
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useEffect
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 7755 words
The page has adequate content for search relevance.
content Strong content depth -- 7755 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 86ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/useeffectevent (24 findings)
▶
meta Title tag present -- 22 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useEffectEvent
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useEffectEvent
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 3095 words
The page has adequate content for search relevance.
content Strong content depth -- 3095 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 84ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/useid (24 findings)
▶
meta Title tag present -- 13 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useId
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useId
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1552 words
The page has adequate content for search relevance.
content Strong content depth -- 1552 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 58ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/useinsertioneffect (24 findings)
▶
meta Title tag present -- 26 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useInsertionEffect
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useInsertionEffect
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 1142 words
The page has adequate content for search relevance.
content Strong content depth -- 1142 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 178ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/uselayouteffect (24 findings)
▶
meta Title tag present -- 23 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useLayoutEffect
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useLayoutEffect
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2119 words
The page has adequate content for search relevance.
content Strong content depth -- 2119 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 83ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/usememo (24 findings)
▶
meta Title tag present -- 15 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useMemo
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useMemo
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 5836 words
The page has adequate content for search relevance.
content Strong content depth -- 5836 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 97ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/useoptimistic (24 findings)
▶
meta Title tag present -- 21 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useOptimistic
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useOptimistic
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 5038 words
The page has adequate content for search relevance.
content Strong content depth -- 5038 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 86ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
reference/react/usestate (24 findings)
▶
meta Title tag present -- 16 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/reference/react/useState
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- useState
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 4795 words
The page has adequate content for search relevance.
content Strong content depth -- 4795 words
The page has substantial content, which tends to perform well in search.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 1 images
Every image on the page includes an alt attribute for accessibility.
accessibility All images have dimensions -- 1 images
Images include explicit dimensions or aspect-ratio hints, preventing layout shifts.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 83ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/react-developer-tools (23 findings)
▶
meta Title tag present -- 29 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/react-developer-tools
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- React Developer Tools
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 514 words
The page has adequate content for search relevance.
content Clean URL structure -- /learn/react-developer-tools/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility All images have alt text -- 3 images
Every image on the page includes an alt attribute for accessibility.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 83ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.
learn/state-as-a-snapshot (23 findings)
▶
meta Title tag present -- 27 chars
The page has a title tag, which is essential for search results.
meta Canonical URL set -- https://react.dev/learn/state-as-a-snapshot
A canonical URL is defined, helping prevent duplicate content issues.
meta Self-referencing canonical -- Self-referencing
The canonical URL correctly points to this page itself.
meta Character encoding declared -- utf-8
The character encoding is properly declared for consistent text rendering.
meta Page is indexable -- Indexable
No noindex directives found -- search engines can index this page.
meta HTML lang attribute set -- en
The page language is declared, aiding search engines and accessibility tools.
meta Meta viewport configured -- Present
The viewport is configured for mobile-responsive rendering.
technical HTTPS enforced -- Secure
The page is served over HTTPS, providing encryption and trust signals.
technical HSTS header present -- Enabled
Strict-Transport-Security header is set, enforcing HTTPS connections.
technical HTTP 200 OK status -- 200
The page returns a successful HTTP 200 response.
content Single H1 heading -- State as a Snapshot
The page has exactly one H1 heading, clearly defining its main topic.
content Sufficient content depth -- 2359 words
The page has adequate content for search relevance.
content Strong content depth -- 2359 words
The page has substantial content, which tends to perform well in search.
content Clean URL structure -- /learn/state-as-a-snapshot/
The URL is lowercase and concise, following best practices.
social Open Graph tags complete -- 4/4
All four OG tags (title, description, image, url) are present for social sharing.
social OG URL matches canonical -- Aligned
The og:url aligns with the canonical URL, ensuring consistent signals.
social Twitter Card configured -- summary_large_image
Twitter Card meta tags are set for optimized Twitter/X sharing.
accessibility No deprecated HTML elements -- Clean markup
The page uses modern HTML standards without deprecated elements.
performance Fast response time -- 64ms
The server responded in under 500ms -- excellent performance.
performance Compression enabled -- gzip
The server uses gzip compression to reduce transfer size.
performance No render-blocking scripts -- All deferred
All external scripts use async or defer, allowing fast page rendering.
links No mixed-content links -- All HTTPS
All links use HTTPS, maintaining a consistent secure experience.
links Secure external links -- Secure
External links opening in new tabs include rel='noopener' for security.