Website Audit

Definition

A website audit combines crawl-based analysis with external data sources to assess a site across multiple dimensions. **Technical SEO audit**: crawl the site to identify broken links, redirect chains, missing canonical tags, noindex on important pages, duplicate titles, missing meta descriptions, robots.txt configuration errors, sitemap coverage gaps, and JavaScript rendering gaps (content accessible only after JS execution). **Structured data audit**: extract and validate all JSON-LD, Microdata, and RDFa on crawled pages against Google\'s Rich Results specifications — identifying missing required properties, incorrect value formats, and server vs client-side rendering gaps. **Core Web Vitals audit**: measure LCP, CLS, and INP from real CrUX field data (not Lighthouse lab estimates) to assess Page Experience signals affecting rankings. **AI visibility audit**: evaluate five GEO signals (robots.txt AI crawler access, llms.txt, FAQPage/HowTo JSON-LD, question-heading ratio, content chunkability) to assess eligibility for AI search citation. **Content audit**: assess indexed page count vs target, thin content (low word count, near-duplicate descriptions), keyword cannibalization across competing pages, and content freshness. **Prioritisation**: the most effective website audits prioritise findings by impact × effort — critical technical issues (incorrect noindex, broken canonicals, missing structured data on high-traffic templates) are P0; title tag improvement for moderate-traffic pages is P2. **Audit frequency**: most sites benefit from a monthly automated crawl report plus a quarterly deep technical audit. High-deployment-velocity sites (SaaS, e-commerce with frequent releases) should run an audit after every significant deployment to catch regressions.

Why it matters for SEO

A website audit reveals the gap between how a site owner believes their site is configured and what Googlebot actually receives. Common audit findings that have large ranking impact: accidental noindex on key pages from a plugin or CMS setting update, canonical tags pointing to staging domains that persisted after deployment, structured data errors blocking rich result eligibility, Core Web Vitals failures causing Page Experience demotion, and JavaScript-rendered content that Googlebot sees only with significant crawl delay. These issues compound over months without regular auditing.

How DeepSEOAnalysis checks this

DeepSEOAnalysis is a free website audit tool covering all major audit dimensions in one pass: structured data validation with property-level error detail, Core Web Vitals from real CrUX data, JavaScript rendering gap detection, robots.txt and sitemap analysis, canonical tag validation, and AI visibility scoring. No signup required; the audit result is available as a shareable URL for team review.

Useful tools and resources

• Free website audit — no signup
• Technical SEO audit checklist