Screen Reader Accessibility Testing
Automated screen reader compatibility testing with virtual screen reader simulation, ARIA validation, and semantic structure analysis for NVDA, JAWS, VoiceOver, and TalkBack.
What Blyxo Tests
Comprehensive screen reader testing combining axe-core, custom analyzers, and AI
Heading Structure Validation
Detect missing H1, skipped heading levels, and empty headings. Ensure logical hierarchy for screen reader navigation.
Landmark Region Detection
Verify banner, main, nav, contentinfo, and complementary landmarks. Check labels when multiple landmarks of the same type exist.
Accessible Name Checking
Validate that buttons, links, and form inputs have meaningful accessible names via text content, aria-label, or aria-labelledby.
ARIA Role Validation
Validate all ARIA attributes against the WAI-ARIA 1.1 and 1.2 specifications. Detect focusable aria-hidden elements and role misuse.
Live Region Detection
Check for aria-live, role="status", role="alert", and role="log" regions to ensure dynamic content is announced.
Alt Text Quality Analysis
AI flags generic alt text patterns ("image", "photo", filenames) and detects duplicate alt text across nearby images.
Form Label Association
Detect form inputs without proper labels via label[for], aria-label, aria-labelledby, or wrapping label elements.
Focus Trap Simulation
Simulate 20 Tab presses to detect keyboard traps and validate focus management in dialogs, modals, and custom widgets.
Virtual Screen Reader
Actual screen reader traversal simulation using @guidepup/virtual-screen-reader. Detects empty announcements, meaningless text, and reading order issues.
Screen Reader Compatibility
Blyxo tests against the assistive technology combinations real users rely on
Automated Testing + Manual Verification = 100% Coverage
After every scan, Blyxo generates a Coverage Report showing exactly what was tested automatically and provides step-by-step manual test procedures for NVDA, JAWS, VoiceOver, and TalkBack — with keyboard shortcuts and expected outcomes.
See the Coverage ReportEnsure Your Site Works for Every User
Get started with comprehensive screen reader testing