1- The ADA Act requires businesses to make accommodations for people with disabilities. 


2- Web content should be accessible to the blind, deaf, and those who must navigate by voice, screen readers or other assistive technologies.


3- Websites with significant inaccessible components can be seen as discriminatory against persons with disabilities, in violation of Title III of the ADA 

4- The ADA is a strict liability law which means there are no excuses/defenses for violations (e.g. ignorance, web developer is working on it, etc.).