H1 / Heading Tag Checker

This free heading tag checker takes your raw page HTML and rebuilds the H1 to H6 outline exactly the way a search engine and a screen reader would read it. Paste your markup, and the tool flags the three structural problems that hurt accessibility and on-page SEO the most: more than one H1 on the page, skipped heading levels (such as jumping from H2 straight to H4), and empty heading tags that carry no text.

A clean heading hierarchy helps Google understand the topic and sections of your page, and it gives assistive technology a reliable map to navigate by. Use this heading tag checker before you publish, after a template change, or any time a page feels disorganized, so you can fix outline issues while they are still cheap to fix.

Heading structure is one piece of strong local and organic visibility. If you also want to track how your business ranks across the map in Google, pair this with ProMapRanker and start free.

FAQ

How many H1 tags should a page have?

Best practice is one H1 per page that describes the main topic. Modern browsers and Google can tolerate multiple H1s, but a single clear H1 keeps the outline unambiguous, so this heading tag checker warns you whenever it finds more than one.

What does a skipped heading level mean?

A skipped level happens when the outline jumps down by more than one step, for example an H2 followed directly by an H4 with no H3 between them. That gap breaks the logical nesting and can confuse screen readers, so the tool highlights every place it occurs.

Why are empty headings a problem?

An empty heading is a tag like an H3 with no visible text inside it, often left behind by a page builder or a styling hack. It adds a meaningless node to the outline and offers nothing to users or crawlers, so the checker lists each one for you to remove or fill in.