WCAG 2.2 Accessibility

Systematic review of websites, mobile apps, and digital content against WCAG 2.2 — the international benchmark for web accessibility.

WCAG 2.2 is the internationally recognised standard for web accessibility, adopted in the EU as EN 301 549. Criterio conducts audits against Level AA — and AAA on request — for websites, mobile applications, and digital interfaces. We apply the standard and report deviations. You interpret the findings and decide on remediation.

What's included in the audit

  • Automated crawl of the full site
  • Manual review of representative pages and flows
  • Review of images, alt texts, and media content
  • Source code, ARIA roles, and semantic structure analysis
  • Mobile app review (iOS/Android) on request
  • Findings classified by severity and WCAG criterion
  • PDF report with per-finding remediation guidance
  • Support for accessibility statement (EN 301 549 / EAA)

A full WCAG audit requires manual review — automated tools cover an estimated 30–40% of criteria. Criterio has the capacity to carry out the manual review that a complete audit requires.

A brief history of WCAG

  • 1994 Gregg Vanderheiden raises web accessibility at the first W3C workshop. Tim Berners-Lee states the founding idea: "The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect."
  • 1999 WCAG 1.0 is published — fourteen guidelines, closely tied to HTML syntax. A start.
  • 2008 WCAG 2.0 is rebuilt from scratch: technology-neutral, introducing the four POUR principles — Perceivable, Operable, Understandable, Robust.
  • 2018 WCAG 2.1 adds 17 new criteria targeting mobile devices, low vision, and cognitive disabilities.
  • 2023 WCAG 2.2 published 5 October. Nine new criteria added and 4.1.1 Parsing removed — modern browsers had made the criterion redundant.

Did you know?

  • WCAG 2.2 contains 78 success criteria across three conformance levels (A, AA, AAA)
  • Automated tools can identify an estimated 30–40% of WCAG issues — the rest require human judgment
  • The "skip to main content" link was among the first widely adopted accessibility techniques — WCAG still requires it (criterion 2.4.1)
  • EN 301 549 is the European standard that harmonises WCAG and forms the technical basis for the EAA
  • Screen reader users primarily navigate by heading levels — correct heading structure is one of the most fundamental accessibility requirements
  • Removing criterion 4.1.1 in WCAG 2.2 generated more debate than almost any other change in the standard's history

Ready to audit your accessibility?

Start with a free scope assessment. No commitment required.

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