Web accessibility means that people can perceive, understand, navigate, and interact with the web, and that they can contribute to the web. In other words we can say that web accessibility is about making your website accessible to all Internet users regardless of what browsing technology they are using. It includes other vision-impaired users such as color blindness or the elderly, those using older browsers, users on mobiles phones or PDA's, or simply someone on a slow internet connection.
An accessible web site provides its user to navigate and interact with lots of features. Following are some of them: