Heading Structure Checker
Analyze the H1-H6 heading hierarchy of any page. Find missing, skipped, or duplicate headings that hurt SEO.
What This Tool Checks
Comprehensive analysis of your page's heading structure for SEO and accessibility.
H1 Validation
Verifies your page has exactly one H1 tag, which is critical for SEO and tells search engines the main topic of the page.
Hierarchy Check
Detects skipped heading levels (e.g., H1 to H3) that break the logical document outline and confuse screen readers.
Visual Tree
Displays your headings as an indented tree so you can instantly see the document structure and spot problems.
Content Analysis
Flags empty headings and headings over 70 characters that may be truncated in search results or hard to scan.
Level Breakdown
Shows how many headings you have at each level (H1-H6) so you can assess whether the content is well-organized.
How It Works
Three steps to analyze any page's heading structure.
Enter URL
Paste the URL of the page you want to analyze. We support any publicly accessible webpage.
Analyze Structure
We fetch the page, parse the HTML, and extract every heading tag (H1 through H6) in document order.
Review Results
See the heading tree, level breakdown, and actionable recommendations to improve your structure.
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Frequently Asked Questions
Common questions about heading structure and SEO.
Why is the H1 tag so important for SEO?
The H1 tag tells search engines the primary topic of the page. Google uses it as a strong relevance signal. Having exactly one H1 per page is the widely accepted best practice. Missing H1s or multiple H1s can dilute your topic focus and confuse crawlers.
What happens if I skip heading levels (e.g., H1 to H3)?
Skipping heading levels breaks the logical document outline. Screen readers use headings to navigate content, so a jump from H1 to H3 can disorient users with visual impairments. Search engines also prefer a clean hierarchy because it signals well-structured content.
How many headings should a page have?
There is no strict limit, but the number of headings should match the depth of your content. A typical blog post might have 1 H1, 3-8 H2s, and a few H3s. The key is that every heading adds meaningful structure rather than being used purely for styling.
Should heading text be kept short?
Yes. Headings over 70 characters may get truncated when Google uses them as title links in search results. Short, descriptive headings are easier to scan, improve readability, and tend to include more focused keywords.