Heading Checker

What Is a Heading Checker?

A Heading Checker is an online tool that examines the heading structure of a web page and shows how its H1, H2, H3, H4, H5 and H6 elements are organised. It can reveal structural problems that may otherwise be difficult to spot when working with a large HTML document.

Headings provide a hierarchy for web content. A clear structure makes pages easier to scan and helps search engines and assistive technologies understand the relationships between different sections. This Heading Checker provides a quick way to review that structure before publishing or updating a page.

Why Use Heading Checker?

Reviewing heading structure manually can be time-consuming, particularly on pages containing many sections. This tool provides an immediate outline of your headings and highlights several common structural issues.

How to Use Heading Checker

Checking your heading hierarchy takes only a few steps. Paste your HTML into the tool and review the generated outline and recommendations.

1. Paste your HTML — Add your page HTML or the section of markup you want to analyse to the input box.
2. Check the headings — Select the Check Headings button to analyse all H1 through H6 elements.
3. Review the outline — Examine the generated heading hierarchy and the number of headings at each level.
4. Fix any issues — Use the recommendations to correct missing, empty, duplicated or incorrectly ordered headings where appropriate.

How Heading Structure Affects SEO and Accessibility

HTML headings establish a hierarchy that communicates the organisation of page content. The H1 generally identifies the primary subject, while H2 headings introduce major sections and lower-level headings organise subsections beneath them. Using headings according to their structural purpose creates a more predictable document outline.

A logical heading structure can also make long pages easier to navigate. Search engines can use page structure as one part of understanding content, while screen-reader users may use headings to move quickly between sections. Good heading structure therefore supports both search visibility and usability without relying on headings simply as a way to make text appear larger or smaller.

What Makes a Good Heading Hierarchy?

A good hierarchy follows the logical relationship between sections. A typical page might begin with one H1, followed by several H2 sections. An H2 can contain H3 subsections, and an H3 can contain H4 subsections when the content genuinely requires another level. Heading levels should describe structure rather than visual styling.

Common Heading Problems

Common issues include pages with no H1, several competing H1 headings, empty heading elements and unexpected jumps between heading levels. These findings do not automatically mean a page is unusable or will receive an SEO penalty. They are signals that the document structure deserves review in the context of the actual content and page design.

Understanding Heading Checker Results

The tool reads H1, H2, H3, H4, H5 and H6 elements from the HTML you provide and presents them in their source order. It reports the total number of headings, counts H1 and H2 elements separately, and groups H3 through H6 together in the summary.

The checker flags several common patterns, including missing H1 headings, multiple H1 headings, empty headings and heading-level jumps. These checks are intended as practical guidance rather than a definitive SEO audit. A heading structure should always be reviewed alongside the page's actual content, navigation, accessibility requirements and HTML semantics.

Frequently Asked Questions