Does heading structure affect rankings?

Indirectly. It helps search engines parse the page and readers navigate it, which feeds the signals that do count.

Is one H1 a hard rule?

Google handles multiple H1s fine, but one H1 describing the page is the cleanest signal you can send.

Should headings contain keywords?

Naturally, yes. Headings are weighted context for the terms inside them.

Heading structure checker

Enter a URL. The tool extracts every heading and checks the outline: exactly one H1, no skipped levels, no empty headings.

Why the outline matters

Headings tell search engines the structure of the page and tell screen readers where they are. One H1 that matches the title, H2s for sections, H3s inside sections, no levels skipped.

Common failures

Zero or multiple H1s.
H2 jumping straight to H4.
Headings used for styling instead of structure.

Heading structure checker

Why the outline matters

Common failures

Next