H1 Tag Checker
Check how many H1 tags your page has — and what they say.
Paste a page's HTML — in your browser: right-click the page → View Page Source, then copy all.
Paste your HTML above to check your H1.
Your H1 is the clearest on-page signal of what a page is about. Search engines read it as the page's headline, and screen readers use it to orient. This checker parses your markup in the browser and tells you how many H1s you have, what each one says, and whether your H1 and title tag are doing different jobs.
How the H1 Checker works
Paste your page's HTML and the tool parses it locally, counting every H1 and extracting its text. The ideal result is exactly one H1 that describes the page and includes your target keyword naturally. Zero H1s means search engines have to infer your topic from weaker signals; several H1s dilute the signal even though HTML5 permits them.
Example
A blog post with two H1s — one in the header logo, one on the article.
The checker flags 2 H1 tags and shows both, so you can demote the logo one to a div or H2.
Frequently asked questions
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