To always redirect users to the www site (for example: http://dotboost.com to http://www.dotboost.com), add the following lines to .htaccess, right after RewriteEngine On:
RewriteCond %{HTTP_HOST} ^dotboost.com
RewriteRule ^(.*)$ http://www.dotboost.com/$1 [L,R=301]
If, on the other hand, you want to redirect http://www.dotboost.com to http://dotboost.com, add the following lines instead:
RewriteCond %{HTTP_HOST} ^www.dotboost.com
RewriteRule ^(.*)$ http://dotboost.com/$1 [L,R=301]
Replace dotboost.com with your site's domain.
Frequently Asked Questions
How do I redirect a non-www domain to www using .htaccess? +
Add RewriteCond %{HTTP_HOST} ^dotboost.com and RewriteRule ^(.*)$ http://www.dotboost.com/$1 to your .htaccess file, right after RewriteEngine On, replacing dotboost.com with your own domain.
How do I redirect a www domain to non-www instead? +
Add RewriteCond %{HTTP_HOST} ^www.dotboost.com and RewriteRule ^(.*)$ http://dotboost.com/$1 instead, again replacing dotboost.com with your own domain.