How to Run an SEO Audit (With a Sample Audit Structure)

Updated October 2026 · 1 min read

An SEO audit is a health check for a whole site: find what is broken, what is missing, and what is holding rankings back — then fix things in order of impact. This guide walks the four audit areas in the order professionals do them.

Part 1 — Technical audit

Check: HTTPS everywhere, robots.txt (test with our Robots.txt Tester), XML sitemap present and submitted, crawl errors in Search Console, page speed (Core Web Vitals), mobile usability, duplicate content and canonical tags, and redirect chains (trace them with Redirect Checker). Technical issues block everything else — fix these first.

Part 2 — On-page audit

Sample your key pages (top traffic, top revenue, newest): titles, meta descriptions, H1/H2 structure, thin content, missing alt text, internal links. Our SEO Analyzer automates the per-page checks; your judgment covers intent and depth. Flag pages that target the same keyword (cannibalization) for merging.

Part 3 — Content gap audit

Compare the topics you cover against what searchers ask: use Search Console queries, "People also ask", and competitor content as sources. List missing topics, outdated pages needing refreshes, and pages with traffic but no conversions. The output is an editorial calendar, not just a problem list.

Part 4 — Backlink and authority audit

Review the backlink profile for toxic patterns (link farms, irrelevant mass links) and disavow only genuinely harmful ones — disavowing good links hurts. Check anchor text diversity and whether the homepage or deep pages attract links. A healthy profile is diverse, relevant and growing slowly.

Presenting the audit: sample structure

1. Executive summary + priority fixes (P0/P1/P2)
2. Technical findings with severity and evidence
3. On-page findings by page group
4. Content gaps and opportunities
5. Backlink summary
6. 90-day action plan

Prioritize ruthlessly: a P0 is "blocking indexing or revenue", not "nice to have". An audit that lists 200 equal-priority issues gets ignored; one with ten ordered fixes gets done.

Frequently asked questions

How often should I audit my site?

A full audit every 6–12 months, plus a quick technical check monthly and after any redesign or migration.

Can I audit my own site, or do I need an agency?

A careful owner can audit a small site with free tools. Large, multilingual or JavaScript-heavy sites benefit from a professional.

What is the most common audit finding?

Duplicate or thin content, broken internal links, and missing or duplicated title tags — all cheap to fix, all common.