W3C (World Wide Web Consortium) as the name indicates is an international ‘’consortium’’ where the members of the organization, a team of specialists technicians and the public, work together to develop standards for the Web. Its mission is to lead the World Wide Web to its full potential by developing standards and guidelines that ensure the growth of the Web in the long term. As a company who follows and keeps up with the everyday evolutions of ‘’the’’ Web and wants to provide the best services for its costumers, Wise Layout - Multimedia Solutions, follows these standards and guidelines developed by the W3C, shown to be a more value for its costumers Websites. This happens because developing a Website according to these standards, its content can be viewed and acceded by anyone regardless of technology, software or hardware used. So, when validating HTML, XHTML the CSS of your Website we will allow that all the people who want to accede the same website do not find any barriers or difficulties, finding all the information they’re looking for.