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Accessibility (WCAG) Checker

One of the free tools from KinetixSEO, an SEO and AI-citation (GEO) checker. Runs a real axe-core accessibility audit — the same engine behind Chrome DevTools — against any live page and reports WCAG violations by impact, with fix guidance for each.

Frequently asked questions

What does this accessibility checker actually test?

It runs axe-core — the same open-source engine behind Chrome DevTools' own accessibility audit — inside a real headless browser against the live rendered page, checking WCAG success criteria: color contrast, missing alt text, form labeling, ARIA usage, heading structure and more.

Why is this queued instead of instant like your other free tools?

A real accessibility audit requires actually rendering the page in a browser (not just reading its HTML), which takes real compute time — usually 10-30 seconds. This page updates automatically once the check finishes.

What do "critical", "serious", "moderate" and "minor" mean?

axe-core's own impact rating for how much a violation affects users of assistive technology. Critical/serious issues typically block a screen-reader or keyboard user entirely; moderate/minor issues are real but less blocking.

Why does accessibility matter for SEO and AI visibility?

Search engines increasingly use accessibility signals as a page-quality proxy, and AI crawlers/answer engines rely on the same clean semantic structure (headings, alt text, labeled controls) that assistive technology needs — fixing accessibility issues improves both.

Is passing this check the same as full WCAG compliance?

No — automated tools like axe-core reliably catch roughly a third of WCAG success criteria. A clean result here is a strong signal, not a legal compliance guarantee; some criteria (like meaningful reading order or genuinely equivalent alt text) still need a human review.

This is one check from KinetixSEO's full SEO/GEO audit. Want the complete picture — Core Web Vitals, AI-citation readiness, technical SEO health, and tailored fixes? Run the free full checker.