Heading Structure Checker (H1–H6), Free
Is your heading outline clean? Paste HTML to find out.
About this tool
Extracts all H1–H6 tags in order and flags SEO issues: multiple H1s, skipped levels (H1 → H3), and empty headings.
How to use
- 1. Paste page HTML.
- 2. Review the outline.
Frequently asked questions
How many H1s?
One per page is the safe standard.
Is it free?
Yes.
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