What is WCAG?
Also called: Web Content Accessibility Guidelines
The short answer
WCAG is the international standard for web accessibility from the W3C, organised around four principles (perceivable, operable, understandable, robust) with levels A, AA and AAA.
WCAG, explained
Level AA is the usual target in law and policy.
Questions people ask about WCAG
What is WCAG?
WCAG is the international standard for web accessibility from the W3C, organised around four principles (perceivable, operable, understandable, robust) with levels A, AA and AAA.
Related terms
Web accessibility means building sites everyone can use, including people who are blind, deaf, have limited movement or cognitive differences, whatever device or assistive technology they use.
ADA website complianceADA website compliance refers to making a site accessible under the Americans with Disabilities Act, typically assessed against WCAG AA in practice.
Screen readerA screen reader is software that reads a page aloud or outputs it to braille, letting blind and low-vision people navigate by headings, links and landmarks.
ARIAARIA is a set of HTML attributes that describe roles, states and labels to assistive technology when native HTML elements cannot express them.
Part of the Web Encyclopedia by Apex Flow Digital. Definitions are general knowledge, kept current, with no invented statistics.