.htaccess rules

Добавить www к домену

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

Убрать www

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