How to Run a Complete SEO Audit in 2026

An SEO audit is the baseline for any SEO program — you can't improve what you haven't measured. Here's the complete process for auditing a B2B website, from technical health to content quality to authority gaps.

Phase 1: Technical Audit

Tools: Screaming Frog (crawl), Google Search Console (indexation and performance), PageSpeed Insights (CWV), Ahrefs (site health).

• Crawl the site and identify: broken links (4xx errors), redirect chains, duplicate content, missing or duplicate title tags/meta descriptions
• Check Google Search Console for: index coverage errors, Core Web Vitals report, manual actions
• Run PageSpeed Insights on top 10 pages
• Check robots.txt and XML sitemap
• Verify structured data implementation

Phase 2: Content Audit

Tools: Ahrefs, Semrush, GA4.

• Export all indexed URLs and their organic traffic data
• Identify top 20% of pages generating 80% of organic traffic — protect and optimize these
• Identify thin content pages (under 500 words, no ranking keywords) — update or consolidate
• Identify keyword cannibalization — multiple pages competing for the same keyword
• Identify content gaps — keywords competitors rank for that you don't

Phase 3: Authority Audit

Tools: Ahrefs, Moz.

• Current Domain Rating/Domain Authority vs competitors
• Referring domain count and quality distribution
• Lost backlinks in past 6 months
• Toxic link profile — links requiring disavow
• Competitor backlink gaps — sites linking to competitors but not you

Audit Output

The audit should produce: a prioritized issue list (by impact and effort), a keyword opportunity list, a content improvement plan, and an authority building roadmap. The prioritization framework: high impact + low effort = fix immediately. High impact + high effort = plan for next quarter.

An SEO audit is only valuable if it produces action. Structure your audit output as a prioritized action plan, not a findings report. The goal is improvement, not documentation.