Verifies the presence and uniqueness of the H1 heading tag.
The H1 heading is typically the main headline on a page. It's defined by the `<h1>` tag.
The H1 tag signals the main topic of your page to both users and search engines. It's a strong relevancy signal.
Having zero or more than one H1 tag can confuse search engines about your page's primary focus, potentially weakening your ranking for target keywords.
<body>
<h1>The Most Important Headline on the Page</h1>
<p>Page content follows...</p>
</body>Run a free audit to see how your site performs on H1 Heading and 159 other checks.
Start Free AuditChecks for the presence, length, and content of the meta title tag.
Evaluates the meta description for its presence, length, and relevance.
Checks for the presence and structure of H2 heading tags.
Ensures all images have descriptive ALT attributes for accessibility and SEO.