Heading Structure Checker
See a page's full H1–H6 outline and catch structural issues like a missing H1, multiple H1s, or skipped heading levels.
Frequently Asked Questions
Is the Heading Structure Checker really free?
Yes — unlimited use, no signup, no credit card. We built these tools to help you audit sites without paying for a data subscription.
Does this tool store or share the URLs I check?
No. Each check runs live and we don't save your input. We keep a short-lived rate-limit counter (by IP) purely to prevent abuse; it is not linked to your results.
How accurate are the results?
This tool reads live, public data directly from the page or domain you enter — it does not rely on a paid third-party database, so it reflects exactly what is publicly visible right now.
Headings (H1 through H6) give a page a logical outline — for readers skimming, for screen-reader users navigating by heading, and for search engines understanding how your content is organized. Common problems include missing an H1 entirely, having several H1s competing for "main topic," or skipping levels (jumping from H2 straight to H4), which breaks the document's logical hierarchy. This tool extracts a page's full heading outline and flags these issues.
How to Use This Tool
Enter a page URL and click Check Headings. The tool pulls every heading tag in order and shows the resulting outline.
What This Tool Checks
Every H1–H6 heading on the page in document order, the total H1 count, and whether the outline skips heading levels (a hierarchy gap like H2 → H4 with no H3 between).
Understanding Your Results
Exactly one H1 is ideal — it should describe the page's single main topic. Zero H1s means search engines and assistive tech have no clear "main heading" signal; multiple H1s dilute it. A skipped level isn't catastrophic for SEO but is an accessibility issue and a sign of sloppy structure worth tidying.
How to Fix Common Problems
If you have multiple H1s (common when a theme uses H1 for both the site logo and the page title), change the extra ones to the appropriate lower level. Fix skipped levels by inserting the missing level or promoting the lower heading. In WordPress, be aware that some page builders and themes output an H1 for the site title automatically — check the rendered page, not just your editor.
SEO Best Practices
Structure headings like a nested outline: H1 for the page topic, H2s for main sections, H3s for subsections within those, and so on. Write descriptive headings that would make sense as a table of contents — vague headings like "More Info" help neither readers nor search engines.
Example
A blog post where the theme outputs the site name as an H1 and the article title as another H1 will show a 2-H1 warning — changing the site-name element to a non-heading (or the article title to work with the theme's single H1) resolves it.
Common Mistakes to Avoid
Don't use heading tags purely to make text bigger — that's what CSS is for; use headings only for actual structural headings. Don't skip H1 because you think it looks too big; style it with CSS instead of omitting it.
Related SEO Guides
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