Global Optimisation?

[Eurod]

I have a .co that ranks well for many keywords on google.com. Few days ago I dicovered that I forgot to set the domain in the google webmaster tools for the US audience but anyway like I said the website got lots of hits from US already.

Issue nr 1.
1. Should I change the settings in google webmaster tools for the US audience ?
2. Do I loose traffic doing this if the website is already well indexed ?

Issue nr 2.
1.The website is well indexed without www; what happens if I add a htaccess file pointing to WWW?
2. Do I loose traffic doing this if the website is already well indexed without the WWW or the traffic will increase?

Issue nr.3
If the WWW is a must than how do I merge those two?

RewriteEngine on
RewriteCond %{HTTP_HOST} ^mywebsite.co [NC]
RewriteRule ^(.*)$ http://www.mywebsite.co/$1 [L,R=301]


RewriteEngine On
RewriteCond %{HTTP_REFERER} !^http://(.+\.)?mywebsite\.co/ [NC]
RewriteCond %{HTTP_REFERER} !^$
RewriteRule .*\.(jpe?g|gif|bmp|png|jpg)$ http://i.imgur.com/test.png [L]

 

[B2Bexpert]

I got your problem and the answer are

add a htaccess file pointing to WWW and add a sitemap into Google webmaster tool after some couple of days you will be get re index with www. And in the traffic and keyword position may be there will be no changes