Hi! Just bought website ranked really good for few keywords. Here is the problem: This website is build on some custom made CMS. In GWT both www and non-www versions are added and set www version as preferred. In SERP www version is displaying... and everything is OK. I did not set any redirect yet. But internal links are all to non-www version, and if I set 301 redirect to www few things will not work (basket, search bar...). Should I 301 redirect to non-www version and set non-www version as prefered website in GWT? Or should I leave preferred website as www version and just make 301 redirect to non-www version? Thank you for your answers!