H1 & Heading Checker
Inspect the H1, H2 and H3 structure of any accessible webpage and quickly spot missing or confusing heading hierarchy.
What is a H1 & Heading Checker?
HTML headings organise a page into sections. The H1 normally communicates the main page topic, while H2 and H3 headings divide supporting information into understandable sections.
Why this check matters for SEO
A logical heading structure improves readability and gives search engines useful context about how page information is organised.
SEO best practices
- Use a clear main heading that describes the page.
- Make section headings meaningful rather than decorative.
- Keep hierarchy logical when moving from H2 to H3 sections.
- Do not add headings solely to insert keywords.
H1 & Heading Checker FAQs
Can a page have more than one H1?
HTML allows it, but a clear primary page heading is usually simpler for users and content structure.
Do headings have to contain keywords?
They should describe their sections naturally. Relevant terms often appear naturally without forcing them.
Does this checker read JavaScript-rendered headings?
The checker analyses the HTML returned by the requested URL. Content added only after complex client-side rendering may not be present.
Understand H1, H2 and H3 heading hierarchy
Headings organise the page for people and assistive technology. One clear page topic heading is a useful design convention, but multiple H1 elements are not automatically an SEO penalty.
How to interpret a result
On a guide to fixing 404 errors, a main H1 might identify the guide, H2 sections explain causes and solutions, and H3 headings divide a longer troubleshooting section into individual checks.
Example only — this is not a result from a real customer scan.
What to do next
- Review the tool output and identify which rendered elements are actually headings.
- Make the central topic easy to identify, ideally with a descriptive main heading.
- Use H2 for major sections and H3 for subsections without skipping levels for visual styling alone.
- If a builder repeats one H1 for desktop and mobile, consider using one responsive element rather than deleting important copy.
Common mistake to avoid
Do not add a second H1 just because the text editor appears empty when a shortcode or page builder already creates one.
Need to check more than one page? Start with a free SEO Scan Lab summary, then review a full crawl if you need site-wide coverage and the source URLs behind issues.