Free WCAG Checker & Validator – Instant WCAG 2.2 AA Audit with Accessibility Score
Run a free WCAG check on your website with the validator tool from achecker.ca. In seconds, our WCAG compliance checker performs a detailed audit based on the latest Web Content Accessibility Guidelines (WCAG 2.2 AA), giving you an instant Accessibility Score and a prioritized list of fixes. Use the achecker.ca WCAG Validator to ensure your site meets global standards.
Enter any URL below to instantly check its accessibility score and WCAG compliance
Free WCAG Checker on achecker.ca
You can run a WCAG-based accessibility audit in seconds. The Web Content Accessibility Guidelines are organized into three levels of conformance: Level A (the minimum), Level AA (the standard for most laws and organizations), and Level AAA (the highest level). The WCAG checker by achecker.ca focuses on A and AA criteria, as these are the benchmarks for global compliance.
How the achecker.ca WCAG Validator Works
Our automated WCAG validator scans the code of your provided URL. It identifies issues and maps them directly to specific WCAG 2.2 success criteria. You receive an overall Accessibility Score and a clear report detailing what was checked, including:
Alternative text for images (1.1.1)
Color contrast ratios (1.4.3)
Programmatic form labels (3.3.2)
Logical focus order and visible focus indicators (2.4.7)
Correct use of ARIA roles for dynamic content
Important: It's important to remember that automation has its limits. A full WCAG audit always requires manual verification to assess user experience and context-dependent issues.
Why WCAG Compliance Matters
WCAG is the global benchmark for web accessibility, developed by the World Wide Web Consortium (W3C). These guidelines are the technical standard referenced by most accessibility legislation around the world, including AODA and the Accessible Canada Act in Canada, the ADA in the USA, Section 508, and the EU's EN 301 549. The latest version, WCAG 2.2, was published in October 2023.
WCAG 2.2 vs 2.1 vs 2.0 – What Changed?
Each new version of WCAG builds upon the previous one by adding new success criteria to address modern web challenges and user needs. WCAG 2.1 added criteria for mobile accessibility and users with low vision or cognitive disabilities. WCAG 2.2 adds further criteria, making the standard even more robust. Scanning against the newest version with a WCAG 2.2 checker ensures your website is aligned with current best practices.
Common WCAG Issues Found by achecker.ca
Our free WCAG check is excellent at finding common, high-impact accessibility barriers. Here are some of the most frequent issues our tool identifies:
Missing alt text for images
Violates a fundamental principle for screen reader users.
Insufficient color contrast
Makes content unreadable for users with low vision.
Inaccessible form fields
Occurs when inputs lack proper labels for assistive technology.
Keyboard traps / missing focus indicators
Prevents keyboard-only users from navigating the site.
Improper heading structure
Confuses users who rely on headings to understand page layout.
Missing page titles
Disorients users about their location on the website.
Map Your WCAG Score to Global Compliance
While laws vary, WCAG Level AA is the common denominator for compliance across most major jurisdictions. achecker.ca is your free WCAG compliance checker to help you meet these obligations.
| Standard | Applicable In | Primary Audience |
|---|---|---|
| WCAG 2.0 AA | Canada (Ontario) | AODA: Public & Private Sector |
| WCAG 2.1 AA | Canada (Federal) | Accessible Canada Act: Federally Regulated Orgs |
| WCAG 2.x AA | USA (via courts) | ADA: Public & Commercial |
| WCAG 2.0 AA | USA (Federal) | Section 508: Federal Agencies |
| WCAG 2.1 AA | European Union | EN 301 549 & EAA: Public & Private Sector |
Frequently Asked Questions (FAQ)
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