seo-technical

# Technical SEO Audit ## Categories ### 1. Crawlability - robots.txt: exists, valid, not blocking important resources - XML sitemap: run `"$HOME/.claude/skills/seo/bin/claude-seo" run sitemap_discovery.py <url> --json`; require a valid entry in `found`, and report stale or unsafe robots.txt declarations separately from working fallback locations - Noindex tags: intentional vs accidental - Crawl depth: important pages within 3 clicks of homepage - JavaScript rendering: check if critical content requires JS execution - Crawl budget: for large sites (>10k pages), efficiency matters - Googlebot **fetch limits**: Googlebot fetches the first **2MB of HTML** and first **64MB of a PDF** (uncompressed; 15MB is the broader crawler-infra default). Long-standing, not a 2026 change, but inline base64 images, oversized inline CSS/JS, or bloated nav can push critical content/JSON-LD past the cap and out of the index. Keep key content + structured data within the first 2MB. - Crawl rate **auto-adjusts** (backs off on 5xx/slow responses); there is **no manual crawl-rate control** (the legacy Search Console setting was removed Jan 2024). Influence crawling via sitemaps, server responsiveness, and robots controls. - Google's canonical crawling/robots reference moved to **developers.google.com/crawling** (migrated 2025-11-20); IP-range files relocated to `/crawling/ipranges/` and `googlebot.json` was renamed `common-crawlers.json`. - AMP has no separate ranking advantage. S...