Heading Checker

The H1 tag is the primary heading of a page and one of the most important on-page SEO signals. Search engines use it to understand the main topic of the page and match it to user queries. A missing or poorly written H1 can significantly hurt rankings for competitive terms.

Technically yes with HTML5, but best practice is to use exactly one H1 per page. Multiple H1 tags dilute the topical signal and can confuse search engines about the primary subject of the page. Screen readers also rely on a single H1 to identify the main document topic.

A logical heading hierarchy (H1 → H2 → H3 etc.) helps both search engines and assistive technologies understand content structure. Skipping levels — for example going from H2 directly to H4 — breaks the document outline and makes it harder for screen reader users to navigate by heading.

Yes. While headings are not the strongest ranking factor, they contribute to topical relevance, featured snippet eligibility and crawl efficiency. More importantly, a clear heading hierarchy improves user experience and time-on-page, both of which correlate with better rankings.

Yes, 100% free with no account required and no usage limits.