Problems with URL's

Checking my adsense I keep seeing URL that are confusing especially the www. part.

example are

mx1. mysite. com
w. mysite. com
ww1. mysite. com
imap. mysite. com

How do I stop this and just make it go to www. mysite
Thanks in advance

 

what do you mean by checking my adsense ?

 

when I check the performance reports in my adsense account these urls are listed as displaying ads that day

 

You can block AdSense robot by .htaccess on those subdomains. Or you can use Site management feature in your AdSense account - https://www.google.com/adsense/app#asfeSiteManagement

 

Thats the problem they are not sub domains, its just they are getting to the site using the shown URL's which do not exist.

 

You may want to try to use canonical URLs via mod rewrite.

Options +FollowSymLinks
RewriteEngine on
RewriteCond %{HTTP_HOST} !^www.example.com$ [nc]
RewriteRule ^(.*)$ http://www.example.com/$1 [r=301,nc,L] 

Code (markup):

This rule basically says if the host in the incoming request does not match www.example.com redirect to www.example.com.

Search google for more info about canonical urls.

 

Thanks I will do that, thats what I was after just did not know what to search for.