Why Heading Structure Matters
Headings (H1 to H6) are the outline of your page. They help readers scan, help screen reader users jump between sections, and help search engines understand which topics the page covers.
A clean outline is one of the simplest on page improvements you can make, and it often reveals content gaps at the same time.
How to Use This Heading Structure Checker
- Copy your page HTML. In Chrome, press Ctrl + U to view the source, then copy everything. Pasting just the article HTML also works.
- Paste it into the box. The outline appears instantly, indented by level.
- Read the summary. It flags missing or multiple H1s and tells you how many headings need attention.
- Fix the red notes. Each problem heading shows exactly what is wrong next to it.
What the Checker Looks For
| Check | Why It Matters |
|---|---|
| Missing H1 | The page has no clear main topic heading |
| Multiple H1s | The main topic becomes less clear |
| Skipped levels | Jumping from H2 to H4 breaks the logical outline |
| Empty headings | Often left by page builders, confusing for screen readers |
| Duplicate headings | Two sections with the same name usually signal repetition |
| Very long headings | Headings over 70 characters are harder to scan |
Tips for a Clean Heading Outline
- Use one H1 that matches the page's main topic and keyword.
- Use H2s for the main sections and H3s for points inside them.
- Never pick a heading level just to change the font size. Use CSS for styling.
- Read the outline on its own. If it tells the story of the page, it is doing its job.
For more detail, read our guides on HTML heading structure best practices, HTML semantic elements, and structuring HTML for AI crawlability.
Frequently Asked Questions
1Can a page have more than one H1?
HTML allows it, and Google has said it is not a ranking problem on its own. Still, one clear H1 makes the main topic obvious for readers, screen readers and search engines, so it remains the recommended approach.
2Is skipping heading levels bad for SEO?
It is unlikely to hurt rankings directly, but skipped levels break the logical outline and make pages harder to navigate with assistive technology. Fixing them is a quick accessibility win.
3Does this heading structure checker fetch my live page?
No. For privacy and reliability it works only with HTML you paste. Everything runs in your browser and nothing is uploaded.
4Why does my WordPress page show extra headings?
Themes and page builders often add headings in the sidebar, footer or widgets. Paste only the article HTML if you want to check the content alone.