Blog & SEO · No. 44
Visualise H1 to H6 headings from HTML or Markdown and catch skipped levels.
44
Blog & SEO
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About this tool
Paste HTML or Markdown to see your heading outline as a tree. The checker flags a missing or repeated H1, skipped levels such as H2 to H4, empty or duplicate headings and headings that are too long.
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FAQ
Yes. Paste the page source or article HTML and the checker will find every heading element in it.
Yes. It is completely free with no sign up, no usage limits and no API keys. Every Content Refiner tool runs in your browser.
Yes. Your text is processed on your own device and is never uploaded, stored or shared. Once the page has loaded, the tool even works offline.
Yes. The Heading Structure Checker works in any modern browser on phones, tablets and computers.
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