Paste your HTML content
Paste your page's HTML content into the heading structure checker. The tool automatically scans for all H1 through H6 heading tags and extracts their text content for structural analysis.
Heading Structure Checker
Paste your HTML content to analyze the heading structure and hierarchy. The tool extracts all H1 through H6 tags and displays them in a structured outline, highlighting any hierarchy violations like missing levels or multiple H1 tags. Essential for SEO content optimization and accessibility compliance.
Workspace
Use the tool below. Your inputs stay local when the tool supports browser-only processing.
Workflow
How to use the Heading Structure Checker
Review the heading outline
The heading structure checker displays a visual outline of your heading hierarchy, properly indented to show the document structure. Any issues like skipped heading levels or multiple H1 tags are highlighted for attention.
Fix structural issues
Use the heading structure checker's recommendations to fix heading hierarchy problems. Proper heading structure improves both SEO rankings and accessibility for screen reader users navigating your content.
Heading Structure Checker — Frequently Asked Questions
Why is heading structure important for SEO?
Proper heading structure helps search engines understand your content hierarchy and topic relationships. The heading structure checker identifies issues like missing heading levels or multiple H1 tags that can negatively impact your search rankings.
How many H1 tags should a page have?
Best practice recommends one H1 tag per page that describes the main topic. The heading structure checker flags pages with multiple H1 tags as a potential SEO issue, as this can confuse search engines about the primary topic of your content.