sitemap-valid
Use when applies to any site with a manually or programmatically generated XML sitemap. Use when debugging sitemap submission errors in Google Search Console.
73.22k repo starsObserved in 1 repos
Testing & Quality
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skip-link
Use when reviewing rendered HTML, interactive components, or design-system patterns related to Implement 'Skip to Content' links. Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output where relevant.
73.22k repo starsObserved in 1 repos
Testing & Quality
skip-navigation
Use when reviewing rendered HTML, interactive components, or design-system patterns related to Include a skip navigation link. Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output where relevant.
73.22k repo starsObserved in 1 repos
Design
slug-keywords
Use when applies to blog posts, product pages, and any content page with editable URL slugs. Use when building a URL strategy for a new site or auditing existing URLs for keyword inclusion.
73.22k repo starsObserved in 1 repos
Business
social-profiles
Use when applies to business websites, personal brand sites, and publisher sites. Use when setting up Organization schema or auditing E-E-A-T signals for sites in competitive or YMYL categories.
73.22k repo starsObserved in 1 repos
Business
source-maps
Use when auditing slow page loads, heavy assets, or rendering delays related to Provide source maps for production debugging. Verify the actual bottleneck in DevTools, Lighthouse, or field data before recommending changes.
73.22k repo starsObserved in 1 repos
Testing & Quality
special-chars
Use when applies to any site with user-generated slugs, CMS-generated URLs, or content in non-English languages. Use when auditing URLs for crawl errors or canonicalization issues.
73.22k repo starsObserved in 1 repos
Business
specificity-management
Use when reviewing stylesheets, component styles, and responsive behavior related to Keep CSS specificity low and flat. Check the rendered layout across breakpoints and interaction states before proposing a fix.
73.22k repo starsObserved in 1 repos
Testing & Quality
speculation-rules
Use when optimising multi-page navigation performance, reducing INP on page transitions, or implementing progressive enhancement for fast page loads.
73.22k repo starsObserved in 1 repos
Development
sprite-generation
Use when reviewing image assets, markup, and CDN or build transforms related to Use image sprites where appropriate. Check encoded size, rendered size, loading strategy, and above-the-fold impact together.
73.22k repo starsObserved in 1 repos
Testing & Quality