Audisto Crawler Hints
HTML Heading Structure Checker SEO & Accessibility Tool
What is the heading checker for
Ensure Proper Content Structure: Detect missing or duplicate H1 headings and broken heading hierarchies that affect content organization and SEO.
Maintain Accessibility Standards: Identify heading structure issues that impact screen readers and other assistive technologies.
Optimize SEO Performance: Find and fix heading implementation problems that could hurt your search engine rankings and content relevance.
Monitor Content Quality: Track heading usage across your website to maintain consistent content structure and prevent accessibility regressions.
How to check heading issues at scale

Headings shape understanding
Proper heading structure is crucial for both accessibility and content organization. Our analysis helps you maintain semantic HTML structure that works for all users. While our quick check provides immediate heading insights for single pages, our full crawler ensures consistent heading implementation across your entire website.
Problem indicating HTML <hx> related hints

<h1> and <h2> not found
If no h1 and h2 headings are found, the URL is flagged with this hint.Learn more
<h1> not found
If the HTML does not have an h1 heading, the URL is flagged with this hint.Learn more
<h1> occurs more than once
If more than one <h1> tag is found, the URL is flagged with this hint.Learn more
Informational HTML <hx> related hints

<h1>-<h6> chain broken
If the HTML contains a broken <h1>-<h6> chain, the URL is flagged with this hint.Learn more