50-Point Technical SEO Audit Checklist

Most sites bleed organic traffic through fixable technical issues that go unnoticed for months. This checklist gives you a repeatable, systematic way to surface those problems before they compound.

It's organised into eight sections: crawl access, indexing configuration, on-page fundamentals, site structure and internal linking, Core Web Vitals performance, mobile usability, structured data, and security. Each item has a clear pass/fail criteria so you can delegate the work or run it yourself without second-guessing what "good" looks like.

The checklist works for new site launches, post-migration audits, and quarterly maintenance reviews. It doesn't replace a paid crawl tool — it tells you what to look for and how to interpret what you find. Run it alongside Screaming Frog, Ahrefs Site Audit, or Google Search Console and you'll have a complete picture of your site's technical health within a few hours.

Whether you're an agency handing this to a client or an in-house marketer doing your first audit, the format is simple enough to complete without specialist knowledge while being thorough enough to catch issues a quick scan would miss.