W3C (World Wide Web Consortium) is the international standards organization for the World Wide Web. Over 350 Members of this organization BEA, Microsoft, SUN, AT&T, AOL, CERN, Cisco, CSIRO, EDS, Fijitsu, Google, HP, IBM, Intel, Oracle, Sony… and the purpose of working together in the development of standards for the World Wide Web.
Why Web Standards?
To make internet a better place, for both developers and visitors, it is important that both browsers and Web developers follow the Web standards. When developers follow the Web standards, the development is simplified, since it is easier for a developer to understand another’s coding. Web pages that conform to the standard are easier for better search engine ranking.
How validate web pages with W3C?
A W3C validator is a software program that can check your web pages against the web standards. When using a validator to check HTML, XHTML or CSS documents, the validator returns a list of errors found, according to your chosen standard. If your web pages developed as per W3C standard the validator returns W3C standard icon code.
HTML / XHTML Validator
To validate HTML or XHTML page validation you can Input the URL of the webpage or upload file or direct input HTML code.CSS Validator
http://jigsaw.w3.org/css-validator/ To validate CSS you can Input the URL of the CSS file or upload file or direct input CSS code.
Make sure you make it a habit to validate all your web pages before publishing.
