For website ADA compliance, the courts have recognized web accessibility standards called Web Content Accessibility Guidelines 2.0 (WCAG 2.0/2.1), created by an international, and Globally recognized, consortium of volunteers.
Some of the requirements:
– Content must be coded for audio translation by screen-reader software.
– Adding Descriptive Image ALT tags
– There must be on-screen captions in videos for screen-reader software to read to the blind and descriptions for the deaf.
– Sites must include accessible drop-down menus for those who use a keyboard as an alternative to a mouse.