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seo-technical

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Audit technical SEO across crawlability, indexability, security, URLs, mobile, Core Web Vitals, rendering, structured data, and IndexNow. Use when the user asks for a technical SEO audit or about crawling, indexing, rendering, or site speed. Exclude content strategy and backlinks.

skills/seo-technical/SKILL.md

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Network or broad shell
Last checked
Nov 9, 2026

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27,800
Repository last updated
Nov 1, 2026
License
MIT

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# Technical SEO Audit

## Categories

### 1. Crawlability
- robots.txt: exists, valid, not blocking important resources
- XML sitemap: run `"${CLAUDE_PLUGIN_ROOT}/scripts/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 (method in section 8)
- 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.
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