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WCAG Accessibility Checker

Check any website for WCAG accessibility issues. Test headings, alt text, ARIA landmarks, form labels, and more — 15 automated checks.

Why Check Web Accessibility?

Legal Compliance

ADA lawsuits have increased 300% since 2018. WCAG 2.1 AA is the standard courts reference. Proactive compliance is cheaper than litigation.

Larger Audience

15% of the global population has a disability. Accessible websites reach more customers. Screen reader users, keyboard-only users, and users with low vision all benefit.

SEO Benefits

Many WCAG requirements align with SEO best practices: proper headings, alt text, semantic HTML, and descriptive links all help search engines understand your content.

Better UX for Everyone

Accessibility improvements help all users. Captions help in noisy environments. High contrast helps in bright sunlight. Keyboard navigation helps power users.

What This Tool Checks

✓HTML lang attribute (3.1.1)
✓Page title (2.4.2)
✓Image alt text (1.1.1)
✓Heading structure (1.3.1)
✓Form labels (1.3.1)
✓Skip navigation (2.4.1)
✓ARIA landmarks (1.3.1)
✓Link text quality (2.4.4)
✓Button labels (4.1.2)
✓Viewport scaling (1.4.4)
✓Text size (1.4.4)
✓Tab order (2.4.3)
✓Auto-playing media (1.4.2)
✓Document structure (1.3.1)
✓Focus indicators (2.4.7)

Frequently Asked Questions

What is WCAG?

WCAG (Web Content Accessibility Guidelines) is the international standard for web accessibility, published by the W3C. WCAG 2.1 Level AA is the most commonly referenced standard in legal and regulatory contexts. It covers four principles: Perceivable, Operable, Understandable, and Robust.

Is web accessibility legally required?

In many jurisdictions, yes. The ADA (Americans with Disabilities Act) applies to websites in the US. The European Accessibility Act requires compliance by June 2025. Over 10,000 ADA web accessibility lawsuits were filed in 2023 alone.

What WCAG level should I target?

WCAG 2.1 Level AA is the standard target for most organizations. Level A covers the bare minimum, Level AA is the accepted standard, and Level AAA is aspirational. Our checker tests against Level AA criteria.

Can automated tools catch all accessibility issues?

No. Automated tools catch about 30-40% of WCAG issues. Manual testing (keyboard navigation, screen reader testing) and user testing with people with disabilities are also essential. This tool catches the most common automated-detectable issues.