Change non-www to www failed

[viktor.iwan]

Hello Guys, i was using non-www domain for my campaign, but then i realized Google Index my site with www. on it

The scoring from non-www and www is different. I delete the campaign and recreate with correct one, but Moz always recognize the old domain

Anything i miss ?

[Devanur-Rafi]

Hi, only one version, either the non-www or www should throw an HTTP header status 200. Suppose you prefer the www version then you should ideally have the non-www version redirected to the www version via a server-side 301, permanent redirection. You can also set the preferred domain setting to the www version in Google webmaster tools account. With 301 in place, you should see things falling on the right track. Care should be taken that only the preferred version URLs are used for any and all of your campaigns as well as link building or link earning purposes.

Best regards,

Devanur Rafi