Interactive Checklist

SEO Audit Checklist for Websites

25 items to review your website's SEO health. Covers technical foundation, indexing, on-page essentials, content quality, and local SEO.

When to Run an SEO Audit

An SEO audit is a health check for your entire website, not just individual pages. It helps you find technical issues that might be blocking search engines from crawling or indexing your content, on-page problems that hurt your rankings, and opportunities you're missing.

Run through this checklist when you take over a new website, when traffic drops unexpectedly, or at least once per quarter to catch issues before they compound. The items are roughly ordered by impact. So, if something in the first two sections isn't working, it can undermine your performance or even keep you from showing up on search engine results at all.

For a detailed walkthrough of each item, read the full SEO audit guide.

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1

Technical Foundation

  • Site loads over HTTPS (secure connection)
  • Site is mobile-friendly (test in Chrome DevTools or Lighthouse)
  • Core Web Vitals pass (LCP, INP, CLS)
  • No major JavaScript rendering issues for content
  • Site works without www and with www (one redirects to the other)
Test your Core Web Vitals at PageSpeed Insights. For mobile testing, use Chrome DevTools Device Mode or Lighthouse.
2

Indexing & Crawlability

  • Site verified in Google Search Console
  • XML sitemap exists and is submitted to Search Console
  • Robots.txt file exists and isn't blocking important pages
  • No critical pages have "noindex" tags accidentally applied
  • No orphan pages (pages with no internal links pointing to them)
Check Search Console → Pages for coverage errors. Crawl your site with Screaming Frog, Sitebulb, or SEO Minion.
3

On-Page Essentials

  • Every page has a unique, descriptive title tag
  • Every page has a unique meta description
  • Every page has exactly one H1 tag
  • Heading hierarchy is logical (H1 → H2 → H3)
  • Images have descriptive alt text
  • Internal links use descriptive anchor text
4

Content Quality

  • No thin content pages (pages with little or no unique value)
  • No duplicate content issues (same content on multiple URLs)
  • Canonical tags are correctly implemented
  • No broken internal links (404 errors)
  • Content is up to date (no outdated information)
Check GA4 → Engagement → Pages and screens to find low-performing pages that might need improvement or consolidation.
5

Local SEO

  • Google Business Profile claimed and optimized
  • NAP (Name, Address, Phone) consistent across web
  • Local business schema implemented on site
  • Listed in relevant local directories
Skip this section if your business is purely online with no local presence.

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