Upload your sitemap that contain your pages and check if they pass the W3C Validator.
If the sitemap is larger it could take a while, so be patient!
Why to validate your website
The name speaks for itself – W3C – WorldWideWeb Compilance. The W3C is standart for every website and passing the validator means the code is perfect, there are no errors. Search engines love perfect codes. You will be always one steap ahead of the competition if your site pass the validator. The problem is that validation is time consuming – once to check every page and after that – to correct it. Now you cut your time to half – the checking happen in seconds with our Mass Validator, saving you time which you can spend in other things.