FREE TOOLHeading Structure Checker. No sign-up.No sign-up.

See the heading outline of any page

Get the full H1 to H6 outline of a URL, with skipped levels, empty headings and other structure problems flagged.

✓ Free, no sign-up✓ Results in seconds✓ A fix for every problem

30 free checks a day. We read the public page and do not store it.

What it checks

What it checks.

Heading Structure Checker

A single H1 at the top
Skipped levels, such as H2 straight to H4
Enough H2 sections
Empty and very long headings

Quick answers

Frequently asked questions.

Why does heading order matter?

Screen readers and search engines use headings to understand how a page is organized. Skipping levels or using headings for styling makes that outline harder to follow.

Is a skipped level an SEO penalty?

No. It makes the outline harder to follow for readers and screen readers, which is why the checker shows it as a warning.

Does the checker include headings in the menu and footer?

Yes. It lists every heading in the HTML, because search engines see them too. Headings used only for styling in navigation are worth changing to plain text.

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