Heading Structure Checker
Visualize and fix your page's document outline. Ensure your H1-H6 tags follow a logical hierarchy for better search indexing.
Why Heading Hierarchy Matters for SEO
Headings act as a table of contents for search engines. A logical structure (H1 > H2 > H3) helps Google understand the relationship between different topics on your page and assign relevance correctly.
Deep Hierarchy Analysis
Nuwtonic's Heading Checker provides a visual map of your page structure. We help you identify 'invisible' technical errors like skipped heading levels that confuse search crawlers and degrade accessibility.
What is a Heading Structure Checker?
A heading structure checker is a technical SEO audit tool that scans a page's HTML headers (H1 through H6) to verify they are used in a sequential, logical order that correctly outlines the content.
How to Audit Your Heading Hierarchy
Enter a page URL or paste your HTML markup.
Run the audit to generate a visual hierarchy map.
Check for red 'Skipped level' or 'Multiple H1' alerts.
Reorganize your headings to follow a sequential H1-H6 order.
Understanding Your Hierarchy Map
Logical structure
Headings follow a perfect sequential order (e.g., H1 followed by H2s).
Skipped level
A jump from H2 to H4 was found. This breaks the document outline.
Missing H1
No primary heading was found. This is a high-priority SEO issue.
Multiple H1s
More than one H1 was detected, which can confuse crawler priority.
Heading SEO FAQ
Can I skip heading levels (e.g., H2 to H4)?
No. You should always use headings in order. Skipping levels makes it harder for search engines and screen readers to understand your content hierarchy.
Does heading structure affect rankings?
Yes. A clear, logical structure helps Google better index your content, which can lead to better rankings for secondary keywords.
Should I use keywords in H2 and H3 tags?
Yes! Subheadings are excellent places to include related keywords and long-tail variations of your primary topic.
How many H2 tags should I have?
There is no limit, but you should use them naturally to break up content into logical, readable sections.
Is it okay to use headings for styling?
No. Headings should be used for document structure only. Use CSS for styling text that isn't a section title.
How do I fix heading issues in my CMS?
Most editors allow you to select a text block and change its 'Heading' level. Ensure your main title is H1 and subtopics are H2 or H3.
Technical Outline Scope
This tool evaluates H1-H6 tag presence, heading sequence, hierarchy logic, and detects multiple H1 tag occurrences across the entire document.
Audit Limitations
This tool evaluates the technical structure of headings only. It does not analyze the keywords or content quality within those headings.