For Dev Teams
Automated WCAG Regression Testing
Accessibility regressions ship silently. A component change, a dependency update, or a CMS edit can break WCAG compliance without touching a single accessibility file. Diaphone catches it in production before your users do.
The Problem
What is a WCAG regression — and why do teams keep shipping them?
A WCAG regression is a new accessibility violation introduced by a code or content change. Unlike a bug in your core logic, accessibility regressions rarely surface in automated test suites, code reviews, or QA cycles — and they compound silently over time.
Component Changes
A UI library upgrade swaps a native button for a div. A redesigned form input loses its label association. Regressions hide in the diff.
CMS Content Updates
A marketing team uploads images without alt text. A copy update introduces a heading hierarchy violation. Accessibility breaks outside the codebase.
Third-Party Scripts
A chat widget, analytics tag, or ad script injects DOM elements with missing ARIA roles. Your team didn't write it — but you're liable for it.
How Diaphone Helps
Production monitoring, not test suite coverage.
Accessibility testing in CI catches what you wrote. Diaphone catches what shipped — including third-party scripts, CMS content, and dynamic rendering that unit tests can't reach.
Baseline on First Scan
Diaphone scans your production site and establishes a baseline of known violations. Every subsequent scan compares against that baseline.
Alert on New Violations
When a new WCAG violation appears — one that wasn't in the baseline — you get an immediate alert via email or Slack with the affected page and selector.
Fix Guidance Included
Every alert includes the WCAG success criterion, the failing HTML snippet, and a link to remediation guidance — so your team can fix it fast.
No CI/CD Required
Diaphone monitors your live production URLs on a weekly cycle. No pipeline changes, no SDK, no configuration beyond adding your URLs.
Multi-Page Scanning
Regressions don't only appear on your homepage. Diaphone scans across your entire site so checkout flows, product pages, and deep routes are covered.
Compliance Audit Trail
Every scan result is stored. When a compliance question comes up — from a client, procurement team, or legal review — your history is there.
"Diaphone is not a replacement for accessibility testing in your development workflow. It's what catches what slips through — in production, after the deploy, before a user or a plaintiff does." — The Diaphone honesty guarantee
Standards Covered
WCAG 2.1 AA, ADA, Section 508 — in one scan.
Diaphone's automated accessibility testing covers the WCAG 2.1 AA success criteria that underpin ADA Title III obligations, Section 508 compliance, and AODA reporting requirements.
The international standard
Web Content Accessibility Guidelines 2.1 Level AA is the benchmark referenced by ADA enforcement, AODA, and most government procurement requirements.
US legal exposure
Courts have consistently held that websites are places of public accommodation under ADA Title III. WCAG 2.1 AA is the de facto compliance standard in US litigation.
Federal & enterprise procurement
Section 508 of the Rehabilitation Act requires federal agencies and their vendors to meet WCAG 2.1 AA. Diaphone's reports support 508 conformance documentation.
Ontario compliance deadline
Ontario's Accessibility for Ontarians with Disabilities Act requires WCAG 2.1 AA compliance and regular reporting. Diaphone monitors and documents your compliance continuously.
Know before your users do.
Add your URLs, run your first scan, and get your baseline today. The free tier is open — no sales call, no demo.
Start WCAG Regression Testing Free →