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SEO Tools

Heading Structure Analyzer

Paste a page's HTML to see its heading outline and catch structure problems such as a missing H1, several H1s or skipped levels.

Runs in your browser. Nothing you enter is uploaded. Last updated

        How to use

        1. Open the page in your browser, view its source (Ctrl/Cmd + U), and copy the HTML.
        2. Paste it into the box.
        3. Review the outline and fix the flagged headings in your editor.

        What this tool does

        Your browser parses the pasted HTML without running any scripts in it and lists every H1–H6 in order. The tool does not fetch URLs, so it works for drafts, staging sites and pages behind a login.

        Why it matters

        Headings give a page a structure that screen reader users navigate by and that helps search engines understand topics. A clear outline also makes long pages easier to scan.

        Frequently asked questions

        Is more than one H1 bad for SEO?

        Google has said multiple H1s are not a problem for ranking. One clear H1 is still the simplest, most accessible pattern.

        Why not just enter a URL?

        Fetching other websites would need a server proxy. Pasting HTML keeps everything in your browser and works for private pages.

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