Free on-page SEO tool
Inspect H1-H6 structure from pasted HTML, then audit up to 100 pages in bulk for missing or multiple H1s, skipped levels, empty headings and repeated heading text.
Single page
Only H1-H6 elements are inspected. The page is not fetched.
Heading structure guide
Headings help users and assistive technology understand page structure. SERPbeam surfaces mechanical issues that are easy to verify from HTML, while leaving editorial decisions such as the best wording and depth of a section to human judgement.
Find pages with no H1 or several H1 elements and inspect the exact text.
The checker flags a missing H1 as a review issue and also flags multiple H1 elements. Multiple H1s are not treated as an automatic search penalty; the warning asks whether the page would communicate its primary topic more clearly with one obvious main heading.
Spot jumps such as H2 → H4 and see the exact affected pair.
Moving back up the hierarchy is fine, such as H3 → H2. The checker only flags downward jumps greater than one level. The outline view preserves source order so you can judge whether the structure reflects the actual sections of the page.
Find headings that add no readable label and headings that repeat exactly within a page.
Empty H1-H6 elements are flagged because they create structure without useful text. Repeated non-empty heading text is a review signal, not automatically an error: repeated labels can be legitimate in some interfaces, but they can also indicate weak templates or ambiguous sections.
Compare up to 100 pasted or uploaded HTML pages in one pass.
Paste page blocks separated by === page URL or label === or upload multiple HTML files. In addition to page-level checks, bulk mode flags the same non-empty H1 appearing on multiple pages, then lets you filter issues and export the audit to CSV.
The checker verifies markup, not the visual prominence or semantic quality of the rendered page.
SERPbeam does not decide whether a heading is well written, whether CSS visually makes non-heading text look like a heading, or whether client-side JavaScript changes the final rendered structure after load. It analyzes the HTML you provide.