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SEO Tools

Web Accessibility Checker (WCAG)

Audit your website's accessibility against WCAG standards to ensure it works comfortably for all visitors, including people with disabilities.

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What the tool checks

  • Image alt text presence and quality
  • Text and background color contrast ratios
  • Heading structure and landmark regions
  • ARIA attributes and form field labels
  • Keyboard navigability

Why it matters

An accessible website is both a legal obligation (especially in the EU under the Web Accessibility Directive) and an SEO advantage. Many accessibility best practices — alt text, semantic HTML, clear heading hierarchy — simultaneously help search engines understand your content better.

Detailed guide in the help center

Frequently asked questions

What is WCAG?

The Web Content Accessibility Guidelines — an international accessibility standard. Most organizations target WCAG 2.1 Level AA compliance.

Does accessibility affect SEO?

Yes, indirectly. Alt text, semantic HTML, and logical heading structure all aid both accessibility and search engine comprehension of your content.

Is web accessibility legally required?

For many organizations, yes. The EU Web Accessibility Directive is progressively expanding to cover more commercial entities, and similar regulations exist in the US (ADA).

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