A technical SEO audit is a systematic review of every technical factor that affects how search engines crawl, render, and index your site. That includes crawl errors, broken links, page speed, mobile usability, duplicate content, indexing gaps, and structural issues like a confusing site architecture.
The goal isn't to produce the longest possible list of issues — it's to find the ones actually holding your rankings back, and explain them in a way you can act on, whether that's you, your developer, or us doing the fixing.