mod_rewrite - add www

Question

I\'m trying to force www for my site address with .htaccess:

RewriteCond %{HTTP_HOST} ^mysite\\.com$ [NC]
RewriteRule ^(.*)$ http:/         


        

Answer 1

From the superb HTML5 Boilerplate .htaccess:

  RewriteCond %{HTTPS} !=on
  RewriteCond %{HTTP_HOST} !^www\..+$ [NC]
  RewriteRule ^ http://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]