SEO & Webmaster
Heading Structure Checker
- Browser-based
- No signup
Browser-based
Paste HTML or fetch a URL to list headings and flag SEO issues such as missing H1 tags or skipped heading levels.
Fetched pages may be blocked by CORS. Paste HTML for accurate heading outlines when live fetch fails.
How to use this tool
1. Enter a page URL or paste HTML. 2. Run the checker to build the heading outline. 3. Review warnings about H1 count and level jumps. 4. Restructure headings for a logical, accessible hierarchy.
Worked example
Example: a page jumping from H1 to H3 triggers a warning — add an H2 section heading between them for better structure.
How it works
Parse H1–H6 tags from HTML and flag SEO issues such as missing H1, multiple H1s, or skipped heading levels in the document outline.
Limitations
Fetched pages may be blocked by CORS. Paste HTML for accurate heading outlines when live fetch fails.
Privacy and file handling
Your data is processed in your browser and is not uploaded to our server.
Frequently asked questions
Is the Heading Structure Checker free to use?
Yes. Utilnivo tools are free to use and do not require an account.
Are my inputs stored?
Utilnivo does not require an account. See the privacy note on this page for how your data is processed for this tool.
How do I get started with Heading Structure Checker?
Open the tool on this page, enter your inputs, and use the on-screen controls. No account is required.
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