Web Accessibility Testing: find every barrier your users face.
Comprehensive WCAG 2.2 evaluation combining automated scanning and manual expert review. Every page, every user flow, every assistive technology — tested before a demand letter finds what you missed.
- Automated + manual testing across every page in scope
- Screen reader, keyboard, and assistive technology testing
- Prioritized findings report with code-ready fix guidance
- 94.8%
- of top homepages fail WCAG — WebAIM Million 2025
- 4,000+
- US ADA web lawsuits in 2024 — UsableNet
- 41%
- of those were repeat defendants — UsableNet
What it covers
Web accessibility testing is the process of evaluating a website or web application against WCAG 2.2 Level AA — the standard courts, regulators, and laws worldwide treat as the benchmark for accessible digital content. Automated tools catch roughly 30–40% of violations. The rest require a human with assistive technology. Our testing combines both to give you a complete picture.
- Page content and structure
- Keyboard navigation and focus management
- Screen reader compatibility (NVDA, JAWS, VoiceOver)
- Colour contrast and visual design
- Forms, errors, and interactive components
- Third-party embeds and iframes
How it works
Scope agreement
URL or sitemap submitted, pages and flows agreed, asset types defined.
Automated scan
WCAG 2.2 checks across all in-scope pages, issues flagged by criterion.
Manual expert review
Screen reader, keyboard-only, and AT testing to find what scripts miss.
Findings report
Prioritized by severity, WCAG reference, affected users, code-ready fix.
Re-test
Verify fixes meet the standard after remediation.
Understand the standards behind this service
Compliance guides that give context to the work we do.
- Compliance GuideWCAG Compliance Guide
The global standard you're testing against — POUR principles, levels A/AA/AAA, and version differences explained.
- Compliance GuideADA Compliance Guide
How WCAG maps to ADA Title III, what courts enforce, and the demand-letter risk your test results address.
- Compliance GuideEAA Compliance Guide
European Accessibility Act requirements — enforceable since June 2025 for any business serving EU customers.
Real teams, real results.
Companies use Zylyn to cut manual testing time, ship accessibly, and stay ahead of demand letters.
“Zylyn has made it much easier for us to identify accessibility issues across our website. The clear reports help our team understand what needs attention and prioritize improvements without getting overwhelmed.”
- Every finding mapped to its WCAG success criterion
- Manual review with NVDA, JAWS and VoiceOver
- Code-ready fix guidance, verified before delivery
Frequently asked questions
Common questions about testing service services.
A structured evaluation of your website against WCAG 2.2 to identify barriers preventing people with disabilities from using it. Combines automated scanning with manual and assistive-technology testing.
Automated scanning runs in hours. Manual expert review takes 2–5 business days depending on scope. Full findings report delivered within 24h of manual review.
Every issue tagged by severity (critical/serious/moderate), WCAG success criterion, number of instances, affected user groups, and a code-ready fix. Exportable to PDF or CSV.
Yes. Our reviewers test with NVDA, JAWS, VoiceOver, keyboard-only navigation, and high-contrast mode. Automated tools alone miss 60–70% of real barriers.
Automated tools check for known code patterns — missing alt attributes, colour contrast failures, heading structure. Manual testing checks whether a screen reader actually announces things correctly, whether keyboard focus order makes sense, whether error messages are useful.
Yes. One retest is included in the Pro Report tier. For ongoing coverage, scheduled re-audits catch regressions before they become demand letters.
Find out where your site stands — in 90 seconds.
One URL. One scan. A prioritized list of what to fix and how, sent straight to your inbox.
Keep reading
Recent guides from the Zylyn Knowledge Hub.