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Redirecting Non-WWW to WWW

 

If you want to redirect all non-www requests to your site to the www version, all you need to do is add the following code to your .htaccess file:

RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]

This will redirect any requests to http://my-domain.com to http://www.my-domain.com. There are several benefits from doing that:

It will avoid duplicate content in Google
It will avoid the possibility of split page rank and/or split link popularity (inbound links).

It’s nicer, and more consistent.

Redirecting www to non-www

If you want to do the opposite, the code is very similar:

RewriteEngine On
RewriteCond %{HTTP_HOST} !^my-domain\.com$ [NC]
RewriteRule ^(.*)$ http://my-domain.com/$1 [R=301,L]

In this case we are explicitly typing the domain name. I’m sure it’s possible to do it in a generic way, but I haven’t had the time to work one out and test it. So remember to change ‘my-domain’ with your domain name!

 

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