WordPress

Hello,

I'm validation http://www.kortingscode-zoeken.nl using
validator.w3.org. I have a important question about this:

How come it gives so many errors while I'm using WordPress. This this
mean WordPress is poorly build and I should use a different CMS?

For instance:  Attribute xmlns:og not allowed here.I thought that this
was basic?

Hoping to hear from you,

-- 
Met vriendelijke groet,

*Henk Boersema*
*+31 6 39 84 44 78*


*http://www.we-found-it.nl <http://www.we-found-it.nl>*
*http:// <http://goog_579660300>*
*linkedin.com/in/henkboersema87 <http://linkedin.com/in/henkboersema87>*