A11Y Boost
ActiveTagline:Making web accessibility testing easy with heading structure validation tools
Updated:October 22, 2026
Domain Rating:
What is A11Y Boost?
A11Y Boost provides web accessibility testing utilities to evaluate webpage heading hierarchy and detect structural accessibility issues. Its tools include an online web portal and a Chrome extension that check for skipped heading levels, H1 usage, and empty headings to ensure WCAG 2.1 and ADA compliance.
How to use A11Y Boost?
1. Open the Heading Structure Checker web portal or install the Chrome extension. 2. Enter a target website URL or activate the extension on any active tab. 3. Review the visual heading hierarchy, skipped levels, and actionable accessibility recommendations.
A11Y Boost Core Features
01
Heading hierarchy visualization
Renders the visual hierarchy and structure of all headings from H1 through H6 on any webpage.
02
Skipped heading level detection
Identifies broken heading sequences such as jumping from H2 directly to H4 without intermediate levels.
03
H1 heading validation
Checks for missing, duplicate, or improperly placed H1 tags to ensure single primary subject identification.
04
Real-time browser extension analysis
Inspects live webpage heading structures directly inside Google Chrome using a dedicated side panel.
A11Y Boost Use Cases
Auditing webpage heading hierarchy for WCAG 2.1 AA and ADA compliance
Checking heading structure during web development and content authoring
Detecting empty or skipped heading levels across client websites
A11Y Boost Frequently Asked Questions
What does the Heading Structure Checker do?
Which accessibility standards does A11Y Boost follow?
Is A11Y Boost free to use?
A11Y Boost Product Background & Official Links
A11Y Boost Support Email & Customer service contact & Refund contact etc.
A11Y Boost Support Email: hello@a11yboost.com
More Contact, visit the about us page(https://a11yboost.com/accessibility-statement)
A11Y Boost Twitter
A11Y Boost Twitter Link: https://x.com/a11yboost
A11Y Boost LinkedIn
A11Y Boost LinkedIn Link: https://linkedin.com/in/a11yboost/
A11Y Boost GitHub
A11Y Boost GitHub Link: https://github.com/CharlieYalf
A11Y Boost Pricing & Plans
Free
FreeFree
- Online heading structure checker web portal
- Chrome browser extension with side panel integration
- Heading hierarchy visualization
- Skipped and empty heading level detection