Heading Checker (H1–H6)

Why heading structure matters

Headings (H1 to H6) form the outline of your page. Search engines use them to understand the topic hierarchy of your content; screen readers use them to let visually impaired users jump between sections; and writers use them to keep long articles scannable. A page with a clean H1 → H2 → H3 structure ranks better, reads better and is more accessible.

Our Heading Checker instantly extracts every <h1> through<h6> tag from any URL or HTML you paste, then highlights common SEO and accessibility problems — missing H1, duplicate H1s, skipped levels (H2 jumping to H4), and empty headings used purely for styling.

SEO rules for headings

• Use exactly one H1 per page — it's the page's true topic.
• Don't skip levels: H1 → H2 → H3, never H1 → H4.
• Include your primary keyword naturally in the H1 and at least one H2.
• Keep headings short (under 70 characters) and descriptive.
• Don't use headings just for big text — use CSS for that.

Combine with other on-page checks

Headings are only one part of on-page SEO. Confirm your title and description with the Meta Tag Analyzer, regenerate them with the Meta Tag Generator, and check density of your target keyword with the Keyword Density Checker. Need topic ideas? Try the Keyword Suggestion tool.

Common mistakes we catch

• Pages with no H1 at all — common in JS-heavy sites.
• Logo or sidebar wrapped in an H1, hijacking the page topic.
• Hero sections using H3 because the designer wanted smaller text.
• Empty H2s used as decorative dividers.