Automated Accessibility Testing for WCAG Compliance
Comprehensive accessibility audits against WCAG 2.1/2.2 standards. Meet ADA, Section 508, EAA, and AODA requirements with automated testing, AI-powered fixes, and legally-defensible documentation.
Comprehensive Accessibility Testing
Everything you need to achieve and maintain WCAG compliance
Automated WCAG Testing
Test against WCAG 2.1 & 2.2 Level A, AA, and AAA success criteria
Coverage Report
See exactly what Blyxo tests automatically vs what needs manual verification — with step-by-step test procedures tailored to your site
AI-Powered Fixes
Get instant code suggestions to remediate accessibility issues
VPAT Generation
Automatically generate Section 508 VPAT documentation
Legally-Defensible Audits
Timestamped audit trails for compliance documentation
Code-Level Guidance
Exact element locations and remediation code examples
Compliance Tracking
Monitor accessibility scores and track improvements over time
Team Training
50+ interactive modules to upskill your team
Continuous Monitoring
Scheduled scans to catch regressions before deployment
Meet Global Accessibility Standards
Test against the standards that matter for your compliance requirements
ADA (USA)
Americans with Disabilities Act
EAA (EU)
European Accessibility Act
UK Public Sector
UK Accessibility Regulations
AODA (Ontario)
Accessibility for Ontarians
What We Test
Comprehensive automated testing across all WCAG success criteria
Perceivable
Information and UI components must be presentable to users
- ✓Text alternatives for non-text content
- ✓Captions and alternatives for multimedia
- ✓Content structure and presentation
- ✓Color contrast ratios (4.5:1 for normal text, 3:1 for large text)
- ✓Use of color alone to convey information
Operable
UI components and navigation must be operable
- ✓Keyboard accessibility (all functionality via keyboard)
- ✓Focus indicators and tab order
- ✓Sufficient time to read and use content
- ✓Seizure and physical reaction prevention
- ✓Navigable page structure and landmarks
Understandable
Information and UI operation must be understandable
- ✓Readable text with language identification
- ✓Predictable navigation and functionality
- ✓Input assistance and error identification
- ✓Form labels and instructions
- ✓Error suggestions and prevention
Robust
Content must be robust enough for assistive technologies
- ✓Valid HTML and ARIA markup
- ✓Name, role, and value for all components
- ✓Status messages and live regions
- ✓Compatibility with current and future assistive technologies
- ✓Semantic HTML element usage
Start Testing Your Accessibility Today
Automated WCAG testing with AI-powered analysis and browser-based interaction testing
axe-core + AI That Goes Deeper
Blyxo runs axe-core for WCAG rule checks, then layers AI analysis and browser-based testing on top to catch quality and behavioral issues that rule-based scanners cannot reach.
axe-core Engine
Industry-standard WCAG scanner
- WCAG 2.1/2.2 Level A, AA, and AAA rule checks
- ARIA attribute and role validation
- Color contrast ratio analysis (4.5:1 / 3:1)
- Heading structure and landmark validation
- Form label and input association checks
AI Analysis Layer
Reviews axe-core results to catch what rules miss
- Detects generic alt text ("image", "photo", filenames)
- Color-only links, autoplay without controls, CAPTCHA barriers
- Language of parts, unusual words, abbreviation expansion
- Sensory characteristics and text spacing overflow detection
- Filters false positives from automated rule checks
AI-Guided Browser Tests
Specialized test suites for issues scanners cannot reach
- Modal focus trap testing with simulated Tab navigation
- Virtual screen reader traversal and reading order
- Form error suggestion quality evaluation (Claude)
- Video captions, audio descriptions, player controls
- Accessible authentication & cognitive barrier detection
Three Layers, One Comprehensive Audit
Each layer handles a different class of accessibility issues. Together, they cover rule violations, content quality, and real interaction behavior.
axe-core Engine
Rule-based WCAG checks run automatically on every page
Images without alternative text attributes
Incorrect roles, states, or property values
Text that fails 4.5:1 or 3:1 ratio requirements
Skipped heading levels or missing headings
Inputs not associated with visible labels
Missing main, nav, or complementary landmarks
AI Analysis Layer
AI reviews axe-core results and page content for quality issues
Alt text like "image", "photo", or file names
Body text links with no underline or bold
reCAPTCHA, hCaptcha creating cognitive barriers
Foreign content without lang attribute
Claude detects undefined technical terms
"Click the red button" instructions
AI-Guided Browser Tests
Browser automation tests real interactions scanners cannot simulate
20 Tab presses to detect keyboard traps
Initial focus, Escape close, focus return
Traversal simulation with reading order
Measurements against 24x24 / 44x44 thresholds
Audio/video violating WCAG 1.4.2
Paste-blocked fields, autocomplete="off"
Beyond Automation: Your Path to 100% WCAG Compliance
Automated tests catch most issues, but some WCAG criteria fundamentally require human judgment. Blyxo's Coverage Report shows exactly what was tested automatically and provides step-by-step manual test procedures tailored to the components detected on your site — complete with keyboard shortcuts, screen reader commands, and expected outcomes.
Our Recommendation
The Complete Accessibility Testing Approach
AI-Driven Testing + Human Validation = True Accessibility
While our AI-driven browser automation catches many critical issues that static tools miss, we strongly recommend complementing automated testing with real device testing and validation by people with disabilities. This combination provides the most comprehensive accessibility assurance.
What Automation Provides
- Rapid identification of technical violations
- Consistent, repeatable testing across pages
- Early detection during development
- Coverage of visual and interactive issues
- Continuous monitoring and regression testing
Why Human Testing Matters
- Real-world usage with assistive technologies
- User experience and usability validation
- Context-dependent accessibility issues
- Screen reader navigation and announcements
- Cognitive and learning disability perspectives
Blyxo accelerates your testing by catching technical issues automatically, freeing up your human testers to focus on user experience, real-world workflows, and assistive technology compatibility—where human judgment is irreplaceable.