SEO Heading Checker — Free H1-H6 Analyzer | ToolSessions

SEO Heading Checker

Paste your page HTML to see the full H1–H6 hierarchy and instantly catch structural problems — a missing H1, duplicate H1s, or headings that jump levels in a confusing order.

Tip: right-click any page → "View Page Source" → select all → paste here.

What this checks: the count of every H1–H6 tag, the full heading outline in document order, and whether your H1 usage follows best practice.

How to Use This Tool

01

Copy your page's HTML

Open the page, right-click → "View Page Source" (or Ctrl+U), select all and copy.

02

Paste it into the box above

The full HTML is fine — the tool only reads the heading tags it needs.

03

Click "Check headings"

You'll get a per-level count plus the full outline in the order it appears on the page.

04

Fix the structure

Address any flagged issues in your CMS, then re-run the check to confirm it's clean.

About the SEO Heading Checker

Headings do two jobs at once: they help visitors scan a page and quickly find the section they care about, and they give search engines a structural map of what the page covers and how the content is organized. A page with one clear H1 and a logical run of H2s and H3s underneath it is easy for both humans and crawlers to understand.

The most common heading mistakes are having no H1 at all (search engines lose the clearest signal of what the page is primarily about), having multiple H1s (which dilutes that signal, though it's not always a hard error), and skipping levels — jumping from an H2 straight to an H4, which breaks the logical outline even though nothing renders visibly wrong.

This tool pulls every H1 through H6 tag from your pasted HTML, counts them by level, and lays out the full outline in the order it appears in the document — so you can see at a glance whether the structure actually nests the way you intended.

Frequently Asked Questions

How many H1 tags should a page have?

One. While HTML5 technically allows multiple H1s and most browsers won't complain, a single clear H1 gives search engines the strongest, least ambiguous signal about the page's primary topic. Use H2s and H3s for supporting sections instead of adding more H1s.

Is it bad to skip a heading level, like going from H2 to H4?

It won't break your page visually or cause a penalty, but it does weaken the logical outline of your content, and it can hurt accessibility for people using screen readers, who often navigate a page by jumping between heading levels. Best practice is to nest headings in order — H2, then H3, then H4 — without skipping.

Do headings need to contain my target keyword?

It helps, but it shouldn't be forced. Including your primary keyword naturally in the H1 and at least one H2 reinforces topical relevance, but a heading that reads awkwardly just to fit a keyword usually does more harm than good for the actual reader.

Does heading order affect accessibility, not just SEO?

Yes, significantly. Screen reader users frequently use headings as a table of contents to jump around a page. A logical, non-skipping heading structure makes your content genuinely easier to navigate for people using assistive technology, independent of any SEO benefit.

Can I use styled text that looks like a heading instead of an actual heading tag?

Visually it might look the same, but search engines and screen readers only recognize real heading tags (H1–H6) as structural headings — bold or large text without a heading tag carries no structural weight. Always use the actual tag, then style it with CSS if you want a different visual appearance.

Will this tool tell me if my headings are worded well, or just count them?

It focuses on structure — counts, hierarchy, and flags like a missing or duplicated H1 — rather than judging the quality of the wording itself. For the actual copy, read the extracted outline and check that each heading clearly previews the section beneath it.