Revenue-driven SEO
Free tool

On-page SEO checker

Paste any page's HTML source and get a full on-page audit in seconds — title, meta, headings, alt text, schema, links and indexability, scored and explained. Works on any page you can view, including competitors'. Nothing is uploaded.

Page source

Works for any page — yours or a competitor's. Nothing you paste leaves your browser.
On-page SEO score
0/100
Passed
0
Checks in good shape
Warnings
0
Improvable
Failed
0
Fix these first
Word count
0
Visible text
Metadata & indexability
Content & structure
Media, links & schema

This checker analyzes the HTML you paste — it can't measure page speed, mobile rendering, backlinks or index status, and JavaScript-injected content won't appear in "view source". Use it as an on-page hygiene check, not a full audit. Everything runs locally in your browser. Tool provided free by ThrillSEO.