My website doesn't display www

[sanchezpro12]

some part of my website does but when i type it in without www it will display by itself before but now it doesn't i even added the code i found on here to my htaccess

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i've set all aettings to www except for the cookie domain that starts with .domain

[Starnova]

you can add this to your .htaccess file. I had the same issue..  

RewriteEngine on

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

[Ahmed Ali]

This user has been denied support.

you can also change your board url go to acp>configuration> Board Settings » Site Details then change board url from yoursite.com to www.yoursite.com