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Technical SEO audit for developers

Technical SEO problems are production defects with search consequences. This audit is written for the people who deploy the fix: it preserves response headers and HTML, records rendered output and explains how to prove the change in the next release.

Written and reviewed by Vitor Barbosa · Editor

Responsible for this site's editorial standard and published methodology. Reviews every page that makes a technical claim before publication.

Published

Transport and crawl path

Status codes, redirect chains, HTTPS, robots.txt, index directives, canonicals and sitemap discovery are evaluated before content rules. If access is blocked or a browser measurement is missing, downstream rules say unavailable instead of making assumptions.

Rendering and performance

A real browser compares served HTML with the rendered DOM, records console and request failures, and measures LCP, CLS and INP in a controlled lab run. Lab results are labelled as lab results; field performance still belongs to CrUX or your own real-user monitoring.

Release verification

Each remediation ends with an acceptance test. Included re-verifications execute the same rules over the same scope and show fixed, regressed, still-open and no-longer-comparable findings without rewriting the original report.