WCAG

WCAG (Web Content Accessibility Guidelines)– A set of international standards and recommendations that determine how web content should be accessible to all users, including people with disabilities. These rules were created by the Web Accessibility Initiative (WAI) within World Wide Web Consortium (W3C)

Key concepts

  • Accessibility: The ability of web content to be usable by the widest range of people, including individuals with visual, auditory, mobility, or cognitive impairments.
  • POUR principles: The fundamental pillars of WCAG:
    • Perceivable: Information must be presented in a way that users can perceive (e.g., alternative text for images).
    • Operable: All functionalities must be operable (e.g., also via keyboard).
    • Understandable: Content and controls must be understandable and predictable.
    • Robust: Content must be robust enough to be processed by various assistive technologies.
  • Conformance levels: WCAG defines three levels of conformance: A (basic), AA (recommended), AAA (highest).
  • Assistive technologies: Software or hardware that helps people with disabilities use the web (e.g., screen readers).

Help with WCAG

If you need advice, implementation, or training in the area of WCAG and web accessibility, contact us – we will be happy to prepare a tailored solution for you. Contact us.

Links to encyclopedias and expert sources

Title/Description Link
Slovak overview of WCAG 2.1 Rules for web content accessibility (WCAG) 2.1 – Slovak translation
Glossary and explanation of WCAG Web Content Accessibility Guidelines (WCAG) – LoadFocus
Expert article on WCAG What is WCAG and why should every developer know it?
Czech Wikipedia Web Content Accessibility Guidelines – Wikipedia
English Wikipedia Web Content Accessibility Guidelines – Wikipedia
Official W3C page WCAG 2 Overview – Web Accessibility Initiative (WAI)
Overview of WCAG principles Understanding WCAG 2.2 – GOV.UK

Note

As of June 28, 2025, the European Accessibility Act (EAA) will come into effect, requiring selected products and services to be accessible according to the standards of WCAG.