Accessibility Remediation: fix the code, not just the surface.
An audit tells you what's broken. Remediation fixes it. Zylyn's engineers work directly in your codebase — or alongside your team — to close WCAG failures at the source. No overlays. No shortcuts. Real fixes that hold up to scrutiny.
- Code-level fixes by Zylyn engineers — not surface patches
- Covers web, mobile apps, PDFs, and documents
- Validation testing confirms every fix meets the standard
- 97.4%
- of top websites fail WCAG — WebAIM 2024
- 5,000+
- ADA lawsuits in 2025 — UsableNet 2026
- $50K
- avg first ADA settlement — plus mandatory remediation
Why remediation matters
Overlays don't work. Courts reject them. Users hate them. An overlay widget injects JavaScript that tries to patch your site as it loads — it cannot rewrite structural code problems, and courts have consistently declined to accept an installed overlay as proof of compliance. Real accessibility compliance requires fixing the underlying code. Zylyn's engineers implement fixes directly or work alongside your developers to close every finding at the source. Every fix is validated with assistive technology before it's marked resolved.
- HTML structure and ARIA
- Keyboard navigation and focus management
- Colour contrast and visual design
- Form labels and error handling
- Captions and media accessibility
- PDF and document accessibility
- Mobile app accessibility (iOS and Android)
How it works
Assessment
Review audit findings and prioritise by severity and user impact.
Remediation roadmap
Sequenced fix plan matched to your team's capacity and sprint schedule.
Code-level fixes
Zylyn engineers implement fixes or work alongside your developers.
Content remediation
PDFs, documents, and multimedia made accessible.
Validation testing
Every fix verified against WCAG with assistive technology.
Knowledge transfer
Your team gains the skills to maintain accessibility going forward.
Understand the standards behind this service
Compliance guides that give context to the work we do.
- Compliance GuideWCAG Compliance Guide
The criteria your remediation work targets — POUR principles, success criteria, and what AA conformance means.
- Compliance GuideADA Compliance Guide
Why fixing the code matters more than overlays — and what courts actually look for in a defensible posture.
- Compliance GuideEAA Compliance Guide
EU requirements for ongoing conformance — why remediation is an ongoing programme, not a one-time fix.
Real teams, real results.
Companies use Zylyn to cut manual testing time, ship accessibly, and stay ahead of demand letters.
“We've reduced manual accessibility testing time by over 70%. Zylyn flags issues in real-time and suggests fixes. Our audit process is now faster and more reliable than anything we had before.”
Frequently asked questions
Common questions about remediation services.
The process of fixing accessibility barriers identified in an audit — at the code level, not with a surface overlay. Real remediation changes the underlying HTML, CSS, and JavaScript so assistive technologies can actually use your site.
No. Overlays inject JavaScript that tries to patch your site as it loads. They cannot rewrite structural code problems, and courts have consistently declined to accept an installed overlay as proof of compliance. Remediation fixes the source. An overlay on top of properly remediated code is a usability convenience — never a substitute.
Yes, for Managed Remediation engagements. Zylyn engineers implement fixes directly or pair with your developers. For teams that prefer to do their own fixes, we provide code-ready guidance for every issue.
Anything in scope: web pages, web apps, mobile apps (iOS and Android), PDFs, Word documents, and multimedia captions. The scope is agreed at the start based on your audit findings.
Timelines depend on the number and complexity of issues. Simple remediations run in days. Large-scale projects are scoped during the discovery call. We sequence work by severity so the highest-risk issues are resolved first.
Every fix is validated against WCAG with assistive technology testing before it's marked resolved. We update the findings report to reflect confirmed fixes and retest the full scope after major remediation work.
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.