Heading Analyzer (Header Tag Checker)
Enter a URL to see every heading on the page as an indented outline, with counts for H1 through H6 and a list of structural issues — no H1, several H1s, skipped levels, empty or overly long headings. Add a keyword to highlight the headings that use it.
Enter a URL or paste HTML and the analyzer extracts every H1–H6 heading in document order, shows them as an indented outline, counts each level and flags problems such as a missing H1, multiple H1s, skipped levels (H2 → H4), empty and duplicate headings. Add a keyword to highlight the headings that contain it.
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How to use Heading Analyzer
- 1Enter the page URL (or paste HTML) and, optionally, a keyword.
- 2Read the outline — it should read like a table of contents for the page.
- 3Fix the issues flagged: add a missing H1, remove empty headings, nest levels in order.
- 4Export the outline as CSV to plan a rewrite.
Why heading structure matters
Headings are the outline of your content. They help readers scan, give screen-reader users a way to jump between sections, and help search engines understand the main topic and sub-topics — sometimes they're used for jump links or featured snippets.
Best practice is one H1 stating the page's main topic, H2s for the main sections and H3s nested under them. Google has said it can handle multiple H1s and that headings aren't a strict ranking rule, but a clean, logical outline is still what makes content easy to understand for both people and machines.
Common heading mistakes
Using headings for styling — making a sentence big with an H3 — rather than for structure. Skipping levels, which breaks the outline for assistive technology. Empty headings left by icons or page builders. And the same heading repeated in the header, footer and sidebar on every page. To check H1s across several pages at once, use the H1 Checker.
Frequently Asked Questions
Can a page have more than one H1?
HTML allows it and Google says it copes fine, but one H1 that clearly states the topic is still the clearest structure, so the analyzer flags multiple H1s as a warning, not an error.
Do headings need to contain my keyword?
The H1 should reflect the topic, and naturally it often includes the main keyword. Subheadings should describe their sections — using related terms and questions there helps cover the topic.
Why are some headings empty?
Usually an icon, image or leftover element from a page builder is wrapped in a heading tag. Remove it or give the heading real text.
What happens to the URLs I analyze?
Your browser can't read other websites directly, so our server fetches the public page once, returns the HTML to your browser, and the analysis runs on your device. We don't store the page, the results or a history of the URLs you check. Private and internal addresses are blocked. For pages behind a login, use the Paste HTML option.