Search engines use headings to understand page structure and topic hierarchy. A logical H1 to H6 order helps crawlers identify your main topic and subtopics, which can improve how your content is indexed.

Should a page have only one H1 tag?+

Best practice is one H1 per page representing the primary topic. Multiple H1 tags dilute the signal to search engines about what the page is about. The analyzer flags pages with zero or more than one H1.

What does skipping a heading level mean?+

Jumping from H2 to H4 without an H3 creates a gap in the document outline. Screen readers and search engines expect a sequential hierarchy. The tool flags these skips so you can fill in the missing levels.

Is the analysis done locally?+

Yes. All heading parsing and hierarchy checks run in your browser. No HTML or page content is sent to any external server, so you can analyze staging pages or unreleased content privately.

Does this check heading content quality or just structure?+

It focuses on structural hierarchy — tag order, nesting, and completeness. It does not evaluate whether your heading text contains good keywords, though clear descriptive headings are always recommended.