User Agent Accessibility Guidelines

W3C guidelines that explain how to make user agents—web browsers, media players, and other applications that render web content—accessible to people with disabilities. UAAG covers how user agents should support accessibility features built into web content, provide their own accessible user interfaces, enable users to customize display and interaction preferences, and communicate effectively with assistive technologies. Version 2.0 (UAAG 2.0) includes recommendations for mobile user agents and specifies that user agents should provide outline views of website structure to aid navigation.