seo-sitemap

Analyze existing XML sitemaps or generate new ones with industry templates. Validates format, URLs, and structure. Use when user says "sitemap", "generate sitemap", "sitemap issues", or "XML sitemap".

By agricidaniel · 5,726 installs

npx skills add agricidaniel/claude-seo --skill seo-sitemap

Source repository · Upstream listing

Sitemap Analysis & Generation Mode 1: Analyze Existing Sitemap Discover candidates before reporting a sitemap missing: The helper reads every bounded Sitemap: declaration in robots.txt, validates cross host targets through the shared SSRF safe fetch layer, and still probes common paths when a declared sitemap is stale or invalid. Use only entries in found ; preserve declared failures as findings instead of treating a robots.txt line alone as proof that a sitemap works. Validation Checks Valid XML format Per file limit: ≤50,000 URLs AND ≤50MB uncompressed (whichever is hit first) All URLs return HTTP 200 <lastmod accurate: must be a valid W3C Datetime and reflect the last significant content change (main content, structured data, links, not copyright/boilerplate edits). Google only honours <lastmod when consistently and verifiably accurate, so warn when values are suspiciously uniform or newer than the page's real content. No deprecated tags: <priority and <changefreq are ignored by Google Sitemap referenced in robots.txt Compare crawled pages vs sitemap; flag missing pages Quality Signals Sitemap index file if 50k URLs Split by content type (pages, posts, images, videos) No non canonical URLs in sitemap No noindexed URLs in sitemap No redirected URLs in sitemap HTTPS URLs only (no HTTP) Common Issues Issue Severity Fix 50k URLs in single file Critical Split with sitemap index 50MB uncompressed single file Critical Split with sitemap index Non 200 URLs High Remove or fix broken URLs Noindexed URLs included High Remove from sitemap Redirected URLs included Medium Update to final URLs All identical lastmod Low Use actual modification dates Priority/changefreq used Info Can remove (ignored by Google) Extension sitemaps (image / video / news) Google documents three subtypes with their own rules, validate per subtype: Image ( http://www.google.com/schemas/sitemap image/1.1 ): only two valid tags remain, <image:image and <image:loc (max 1,000 <image:image per <url ). <image:caption / <image:geo location / <image:title / <image:license were deprecated (2022), flag as info level removable. Video : required <video:video with <video:thumbnail loc , <video:title , <video:description , plus <video:content loc or <video:player loc ; mRSS also supported. Flag deprecated/removed tags ( <video:category , <video:gallery loc , <video:price , <video:tvshow , player autoplay/allow embed) as info level removable; recheck Google docs before citing a removal date. News : max 1,000 <news:news per file (not 50,000); include only articles from the last 2 days ; required <news:publication / <news:name / <news:language / <news:publication date / <news:title ; submit/discover through Search Console or robots.txt/sitemap index; use Publisher Center only for publication management where relevant. When the news: namespace is detected, override the generic 50k check with the 1,000 cap. Mode 2: Generate New Sitemap Process 1. Ask for business type (or auto detect from existing site) 2. Load industry template from ../seo plan/assets/ directory 3. Interactive structure planning with user 4. Apply quality gates: ⚠️ WARNING at 30+ location pages (require 60%+ unique content) 🛑 HARD STOP at 50+ location pages (require justification) 5. Generate valid XML output 6. Split at whichever comes first: 50,000 URLs or 50MB uncompressed, with sitemap index 7. Generate STRUCTURE.md documentation Safe Programmatic Pages (OK at scale) ✅ Integration pages (with real setup docs) ✅ Template/tool pages (with downloadable content) ✅ Glossary pages (200+ word definitions) ✅ Product pages (unique specs, reviews) ✅ User profile pages (user generated content) Penalty Risk (avoid at scale) ❌ Location pages with only city name swapped ❌ "Best [tool] for [industry]" without industry specific value ❌ "[Competitor] alternative" without real comparison data ❌ AI generated pages without human review and unique value Sitemap Format Standard Sitemap Sitemap Index (for 50k URLs) Error Handling URL unreachable : Report the HTTP status code and suggest checking if the site is live No sitemap found : Run sitemap discovery.py and report "not found" only when its found list is empty after declared and common candidates are checked Invalid XML format : Report specific parsing errors with line numbers Rate limiting detected : Back off and report partial results with a note about retry timing Output For Analysis VALIDATION REPORT.md : analysis results Issues list with severity Recommendations For Generation sitemap.xml (or split files with index) STRUCTURE.md : site architecture documentation URL count and organization summary