Search code examples
.htaccesshttp-redirectsubdomain

Redirect any sub domain to a page on main domain


Just a quicky really. I want to be able to redirect anybody who types a subdomain.mydomain.com to be redirected to a page on my main domain. i.e If I typed: answers.mydomain.com I would be redirected to mydomain.com/suberror for instance.

I would like this to be a universal rule if possible because I thought it would be easier to add statements to exclude any subdomains that I didn't want to be redirected rather than add statements to include every other subdomain. I will need to this using a .htaccess file by the way.


Solution

  • Try adding this to an appropriate place in your .htaccess file:

    RewriteEngine On
    RewriteCond %{HTTP_HOST} ^answers\.mydomain\.com$   [NC]
    RewriteRule ^ http://mydomain.com/suberror  [L,R]
    

    As long as the requested host is answers.mydomain.com, the rule will be applied. With the regex match set to ^, any URI will match and the target will be redirected to http://mydomain.com/suberror

    If you want only specific URI requests to be redirected to /suberror, you can tweak the ^ to something appropriate.

    EDIT:

    For all subdomains (including www.mydomain.com):

    RewriteEngine On
    RewriteCond %{HTTP_HOST} ^(.+)\.mydomain\.com$   [NC]
    RewriteRule ^ http://mydomain.com/suberror  [L,R]
    

    To exclude www.mydomain.com, add this line before the RewriteRule:

    RewriteCond %{HTTP_HOST} !^www\.mydomain\.com$  [NC]