Source versus rendered DOM
Inspect the signal in the rendered page.
SEO tool suite · Free in Chrome
Technical SEO Chrome Extension for Live Page Audits
Search Toolbox helps you debug the technical signals search engines actually receive, directly on the live page. The goal is one evidence trail across source, render, headers and page markup, without hiding the evidence behind one overall score.
technical SEOs, developers and migration teams
What you can verify
Robots and HTTP headers
Compare source code with the browser output.
Canonical and hreflang consistency
Find contradictions that block indexation.
Redirects and JavaScript behavior
Export evidence your team can act on.
The observable problem
Source code, rendered DOM and HTTP behavior often tell different stories.
The useful outcome
one evidence trail across source, render, headers and page markup
Evidence on the real page
technical SEO Chrome extension
A verifiable workflow, not a decorative score
Open the real page
Check the technical SEO Chrome extension in the real session, staging environment or localhost — preferably the troublesome page, not the perfectly groomed demo.
Inspect the evidence
Check source versus rendered dom, robots and http headers, canonical and hreflang consistency, redirects and javascript behavior and connect signals that contradict each other.
Fix and retest
Aim for one evidence trail across source, render, headers and page markup. Change one rule at a time, then repeat the exact same check so you know what actually moved.
What this page does not pretend to do
For the technical SEO Chrome extension, Search Toolbox inspects the active URL deeply. It is not a full-site crawler, backlink platform or rank tracker. Test several URLs when the issue comes from a template.
Frequently asked questions
What does the technical SEO Chrome extension check?
It covers source versus rendered dom, robots and http headers, canonical and hreflang consistency, redirects and javascript behavior to deliver one evidence trail across source, render, headers and page markup.
Is the technical SEO Chrome extension free?
Manual checks for the technical SEO Chrome extension are included in the 60+ free tools. Only the optional contextual SEO Expert uses credits.
Does it work on staging and localhost?
Yes. The technical SEO Chrome extension check runs on the page you are viewing, including logged-in sessions and non-public environments.
Is it a full SEO crawler?
For the technical SEO Chrome extension, Search Toolbox inspects the active URL deeply. It is not a full-site crawler, backlink platform or rank tracker. Test several URLs when the issue comes from a template.
Verify it on your own page.
Manual checks for the technical SEO Chrome extension are included in the 60+ free tools. Only the optional contextual SEO Expert uses credits.