Free Accessibility (WCAG) Checker
One of the free tools from KinetixSEO, an SEO and AI-citation (GEO) checker. This WCAG accessibility 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.
What you'll get
7 violation(s) found
2
Critical
1
Serious
3
Moderate
1
Minor
Ensures the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds.
Contrast 2.9:1 (needs 4.5:1) — #767676 on #ffffff
What the Free Accessibility (WCAG) Checker checks
- A full axe-core scan against WCAG 2.x rules, run in a real headless browser against the live page
- Violations grouped by impact: critical, serious, moderate, minor
- Color-contrast failures against WCAG's minimum ratio requirements
- Missing alt text on images
- Form fields missing accessible labels
- Fix guidance specific to each violation, not just a pass/fail count
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.
Go deeper
This free check looks at one signal in isolation. KinetixSEO's paid report combines every signal below into one prioritised fix list and tracks it over time.
See the full paid report for this →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.