Can I have more than one H1?

HTML5 technically allows multiple H1s (one per section), but standard SEO best practices still strongly recommend a single, descriptive H1 per page to define the main topic.

Why is skipping heading levels bad?

Skipping from an H2 directly to an H4 breaks the logical document outline, which makes it harder for search engines and screen readers to understand the page structure.

Heading Structure Checker

Analyze hierarchy structures (H1-H6 tags) of pasted code.

Your inputs are processed locally in your browser. Nothing is uploaded to any server.

Pasted HTML Source Code

How to Use

1Paste the raw HTML of your webpage into the input box.
2The tool parses the document and extracts all H1 through H6 tags.
3Review the hierarchical map to visualize your heading tree.
4Check the 'SEO Issues Found' section for skipped levels or missing H1s.

Heading Structure Checker

How to Use

Frequently Asked Questions