Information and Communications Standard - Making your website more accessible
When webmasters talk about a website's accessibility, they are referring to whether your website can be used by everyone. Accessibility is about making your website accessible to all Internet users—everyone who wants to view it, both disabled and abled. For example, can a blind person use your website and access its content? Everyone should have equal opportunity to access the web, regardless of their limitations or browsing technology.
Increasing your website’s accessibility means increasing your website’s usability, which means increasing your website’s traffic, which means increasing your profit.