Page SEO Checker
Paste your page's HTML source code to instantly check its on-page SEO: title, meta description, headings structure, image alt attributes, Open Graph tags and more, with a score per category.
Pourquoi utiliser cet outil ?
On-page SEO issues (a missing title, a duplicated H1, images without alt text...) are easy to miss by eye. This tool analyzes the HTML source you paste directly in your browser and scores it against common on-page SEO best practices. No URL, no server call: paste the HTML you get from "View Source" or your browser's DevTools, and everything runs locally.
Why it's free
A discreet ad banner covers hosting costs — that's the whole business model. No account to create, no usage limit, no paid tier unlocking the real result. Calculations run in your browser, so your numbers, dates and text never leave your device.
How our tools work