SEO Audit

Audit a site or web codebase across everything that decides whether it is found — by a search engine, by an AI answer surface, and by an agent acting for a user. It treats SEO surfaces as auditable artifacts: files, headers, markup, rendered output, the link graph. Read-only. It reports findings and a verdict; it never writes content or edits files.

Eight tracks plus a re-audit mode. Run the ones in scope, name the ones skipped.

Track	Covers	Catalog
A. Crawl and index	robots.txt semantics, sitemaps, status codes, canonical, crawl traps, engine registration, actual indexation	references/crawl-and-index.md
B. On-page and content	title, description, headings, target-query coherence, stuffing, thin and duplicate content, images, URLs	references/on-page-and-content.md
C. Markup and appearance	structured data live and retired, preview tags, favicon, preferred sources, the snippet as it renders	references/markup-and-appearance.md
D. Rendering and delivery	raw versus rendered, mobile/desktop parity, HTTPS and certificates, page weight, performance proxies	references/rendering-and-delivery.md
E. International and local	`html lang`, hreflang, market declaration, `LocalBusiness` and NAP, regional result units	references/international-and-local.md
F. Links	internal graph, outbound hygiene, link-scheme exposure, and the declared limit on inbound data	references/links.md
G. AI and agent visibility	crawler roster per vendor, directives, AIPREF, llms.txt posture, render-blindness, citability, measurement	references/ai-visibility.md
H. Scaled-content gate	uniqueness ratio, doorways, cannibalization, cohort size, borrowed reputation	references/on-page-and-content.md
Re-audit	snapshot fields, drift severity, same-sample rule, URL migration against an old→new map	references/baseline-diff.md

Before reporting anything, read references/not-findings.md. It names, check by check, what the popular crawlers flag that this audit does not, and why. Half of an inherited SEO checklist is in there.

awesome-seo-audit

SEO Audit