diagnose-seo
Installation
Summary
Structured technical SEO diagnostic framework organized by crawlability, indexability, renderability, and signals.
- Diagnoses four interdependent layers in order: crawlability (robots.txt, sitemaps, site architecture, server response), indexability (meta robots, canonical tags, duplicate content), renderability (JavaScript rendering, content visibility), and signals (titles, descriptions, headings, structured data, hreflang)
- Provides specific checklists for each diagnostic area, including common mistakes and validation steps
- Outputs findings in a prioritized table format with severity levels, affected pages, and recommended fixes
- Covers multilingual sites, paginated content, and JavaScript-heavy pages; excludes Core Web Vitals (see audit-speed skill instead)
SKILL.md
Diagnose SEO
Structured diagnostic framework for crawl issues, canonicalization errors, indexation problems, and rendering failures.
Diagnostic Approach
Technical SEO problems fall into four categories. Diagnose in this order — each layer depends on the previous one working correctly:
- Crawlability — Can search engines find and access the pages?
- Indexability — Are the pages allowed to be indexed?
- Renderability — Can search engines see the full content?
- Signals — Are the right signals (titles, structured data, links) in place?
Layer 1: Crawlability
Check these in order:
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