3 tlds：强制只有一个+用htaccess删除www

I have 3 Domains pointing to the same hosting server, let's say:

example.com 
example.net 
example.org

Due to Ajax cross-domain issues & captcha, i wanted to force visitors to only access through example.com while forcing removing www at the same time. I have a feeling that using htaccess is the best solution to achieve this.

So basically if calling in the browser any one of the following urls :

www.example.net, www.example.org, example.net, example.org, www.example.com

Should be redirected to example.com

I couldn't find an answer to my exact case, so please be kind and bear with my limited knowledge.

Cheers,

You can use the following in htaccess :

RewriteEngine on

RewriteCond %{HTTP_HOST} ^(www\.)?example\.net$ [OR]
RewriteCond %{HTTP_HOST} ^www\.example\.com$ [OR]
RewriteCond %{HTTP_HOST} ^(www\.)?example\.org$
RewriteRule ^(.*)$ http://example.com/$1 [L,R,NE,NC]

A little improvement :

RewriteEngine on

RewriteCond %{HTTP_HOST} ^(www\.)?example\.(net|org)+$ [OR]
RewriteCond %{HTTP_HOST} ^www.example.com$ 
RewriteRule ^(.*)$ http://example.com/$1 [L,R,NE,NC]