A11yDetector

Tracking since Apr 7, 2026.

Changelog

• May 3, 2026
  description

  This extension allows you to check any website for web accessibility errors. It includes many different WCAG checkpoints and the checkpoint list is constantly updating.

  Most accessibility extensions only scan your DOM. They find missing alt tags
  and static contrast issues. That's useful — but it covers roughly 25% of WCAG.
  
  A11yDetector is different: it navigates your site with a keyboard, activates
  controls, and measures focus in dynamic states. It catches the issues that
  static scanners physically cannot detect.
  
  WHAT IT TESTS:
  ✓ Keyboard navigation (WCAG 2.1.1)
  ✓ Keyboard traps (WCAG 2.1.2)
  ✓ Focus order (WCAG 2.4.3)
  ✓ Focus visible indicators (WCAG 2.4.7)
  ✓ Color contrast — including :hover and :focus states (WCAG 1.4.3, 1.4.11)
  ✓ Zoom & reflow at 200% (WCAG 1.4.4, 1.4.10)
  ✓ Screen reader compatibility (WCAG 4.1.2)
  
  WHAT MAKES IT DIFFERENT:
  - The only extension that performs interaction-based testing
  - Auditor-grade reports: affected code, suggested fix, reproduction steps,
    user impact, and grouping of repeated occurrences
  - Export to Excel / HTML with one click
  - Configurable viewports (Desktop, Laptop, Tablet, Mobile, Custom)
  - Scan full pages or specific sections via CSS selector
  
  FREE: 5 scans/month. No credit card.
  PRO: Unlimited scans, exports, and history. From $29/month.
  
  Built by A11ySolutions — a team of certified accessibility specialists.

Permissions & access

Permissions

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Host access

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Screenshots