Tweet As a web designer you’re encouraged to write valid code, but is it really important?I’ve took a look at the reasons behind validation and checked out 25 of the web’s most popular websites to see if they bother validating their code.
Markup validation is an important step towards ensuring the technical quality of web pages.
Shaun Anderson conducted an interesting validation test; Does Google like valid code? This experiment included 4 pages with the same content but a mixture of valid and non-valid HTML and CSS.
The result was that Google picked up the page that had valid HTML and valid CSS and indexed this page over the rest.
This will definitely help your website in the future.
Although the easiest way of creating XHTML pages is to start a new project, redesigning and updating old pages could also be a viable solution.