When the law was enacted in 1990, it did not specifically address website accessibility for the disabled, but this has become a much-discussed topic in recent years. In 2006, Target settled a class action lawsuit alleging Target.com was inaccessible to the blind, in violation of the ADA, and in 2015 both Reebok and the NBA were hit with a class action lawsuit that alleged their websites did not accomodate the blind and visually impaired.
ADA Compliance is not exactly new, but there is a noticeable increase in lawsuits. but the most important thing you can do to be ADA compliant is to make your website accessible to people with sensory disabilities like deafness or blindness. This includes alternate text for images and media that are more than decoration, like infographics and photos of things that explain or pertain to website content. This is most important if your website represents a public physical location, like a hotel or store of some kind. Because these lawsuits are usually pursued in the necessity, where people with disabilities really need access to such a business and can't obtain it. https://www.ada.gov/
The ADA is the Americans with Disabilities Act, passed almost 30 years ago in 1990. This act was originally put in motion pertaining solely to physical location. It requires establishments to provide people with disabilities easy access to various levels throughout the business. This act was set to achieve an equal experience to all people, handicapped or not.