I am not sure about that, but I am always care about the google newest update, it is very useful.

Decide if you want to be indexed with the www or non-www version and then use a 301 redirect: .htaccess example, non-www to www: RewriteCond %{HTTP_HOST} !^www\.forumquiz\.com$ [NC] RewriteRule ^(.*)$ http://www.forumquiz.com/$1 [QSA,L,R=301] Also make sure to apply the Prosilver / subsilver2 code ...