Header Tag Analyzer — Improve Your H1 to H6 Tags for Better SEO
Using header tags correctly is an important part of on-page SEO. Headers organize your content for readers and help search engines understand the order and value of each section. This tool keeps the workflow simple: paste and analyze on the left, supporting content below, and the sidebar on the left for popular and related tools.
Full header scan
Pulls every H1–H6 tag from your HTML in document order so nothing slips through.
Tag-by-tag summary
Shows how many of each heading level you use to spot gaps and duplicate H1 tags.
Better hierarchy
Helps you keep a logical H1 → H2 → H3 flow that crawlers and readers follow easily.
Private by design
Everything runs in your browser, so your HTML never leaves your device.
How it works
- Paste your HTML code into the input field above.
- Click Analyze to scan the markup for all H1 to H6 tags.
- Review the full list of headers in order, plus the count for each level.
- Fix duplicate H1 tags, missing levels, or skipped headings, then re-analyze.
Best practices
- Use only one H1 tag that clearly states the page topic.
- Follow the order: H2 for subtopics, H3 for sub-subtopics.
- Add target keywords naturally without stuffing headings.
- Make each heading specific so its section is clear.
- Avoid repeating the same heading text twice on a page.
- Keep headers short so they are easy to scan and read.
Frequently asked questions
What do header tags mean?
Header tags (H1–H6) are HTML elements that help organize the material on a page and set up headings and subheadings so readers and search engines can follow your structure.
How many H1 tags should there be on a page?
There should only be one H1 tag on a page, and it should clearly show the main topic of that page.
What makes the header hierarchy so important?
A correct hierarchy makes it easier for search engines to grasp how your material is organized and makes the content easier for people to read and scan.
Do header tags help with SEO?
Yes. Headers that are set up correctly show that your material is relevant and make it easier for search engines to crawl, which indirectly supports your rankings.
Should headers include keywords in them?
Yes, but do not overuse them. Add target keywords naturally and avoid keyword stuffing so your headings still read well.
How can I know if the headers are optimized?
The Header Tag Analyzer can look at your H1–H6 tags, how often keywords are used, and the order of the tags so you can spot issues quickly.
Is it okay to use more than one H1 tag?
It is not a good idea. One H1 tag on each page makes sure your main topic stays clear for users and search engines.
Do header tags change how people use the site?
Yes. They make content easier to scan, which keeps users on the page longer and makes them more likely to engage.
What do I do to fix skipped heading levels?
Make sure H2 comes after H1, H3 comes after H2, and so on, without skipping levels in your structure.
Is it free to use the Header Tag Analyzer?
Yes. It is free, quick, and does not require you to sign up before checking your headers.
Is it possible for this tool to check more than one page?
You can look at one page at a time. Run the tool separately for each set of HTML if you have more than one page to check.
Should I make headers easier to read?
Yes. A clear header layout helps screen readers and anyone with vision problems find their way around your material.
How often should I use the tool?
Use it every time you create fresh content or review old pages for SEO improvements, so your structure stays clean.
Can this tool find H2 or H3 tags that are missing?
Yes. It shows the headers it finds in document order, making it easy to spot missing levels and improve them.
Does it look at how keywords are used in headers?
It lists each header and its text so you can check whether the right headings include your target keywords naturally.
Need help with other content tools? Try the SEO Audit Tool for a full on-page review, or the SEO Content Score Calculator to gauge how well your content is optimized.