.htaccess - how to force "www." in a generic way?
.HtaccessMod Rewrite.Htaccess Problem Overview
This will change domain.com to www.domain.com:
# Force the "www."
RewriteCond %{HTTP_HOST} !^www\.domain\.com$ [NC]
RewriteRule ^(.*)$ http://www.domain.com/$1 [R=301,L]
How do I replace the "domain" part so that this works on any domain?
.Htaccess Solutions
Solution 1 - .Htaccess
I would use this rule:
RewriteEngine On
RewriteCond %{HTTP_HOST} !=""
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteCond %{HTTPS}s ^on(s)|
RewriteRule ^ http%1://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
The first condition checks whether the Host value is not empty (in case of HTTP/1.0); the second checks whether the the Host value does not begin with www.; the third checks for HTTPS (%{HTTPS} is either on or off, so %{HTTPS}s is either ons or offs and in case of ons the s is matched). The substitution part of RewriteRule then just merges the information parts to a full URL.
Solution 2 - .Htaccess
This will do it:
RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]
Solution 3 - .Htaccess
If you want to redirect all non-www requests to your site to the www version, all you need to do is add the following code to your .htaccess file:
RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]
Solution 4 - .Htaccess
This won't work with subdomains.
domain.com correctly gets redirected to www.domain.com
but
images.domain.com gets redirected to www.images.domain.com
Instead of checking if the subdomain is "not www", check if there are two dots:
RewriteCond %{HTTP_HOST} ^(.*)$ [NC]
RewriteCond %{HTTP_HOST} !^(.*)\.(.*)\. [NC]
RewriteCond %{HTTPS}s ^on(s)|
RewriteRule ^ HTTP%1://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
Solution 5 - .Htaccess
The following should prefix 'www' to any request that doesn't have one, and redirect the edited request to the new URI.
RewriteCond "%{HTTP_HOST}" "!^www\." [NC]
RewriteCond "%{HTTP_HOST}" "(.*)"
RewriteRule "(.*)" "http://www.%1$1" [R=301,L]
Solution 6 - .Htaccess
RewriteEngine On
RewriteCond %{HTTP_HOST} ^[^.]+\.[^.]+$
RewriteRule ^ http://www.%{HTTP_HOST}%{REQUEST_URI} [NE,L,R=301]
This redirects example.com to www.example.com excluding subdomains.
Solution 7 - .Htaccess
This is an older question, and there are many different ways to do this. The most complete answer, IMHO, is found here: https://gist.github.com/vielhuber/f2c6bdd1ed9024023fe4 . (Pasting and formatting the code here didn't work for me)
Solution 8 - .Htaccess
this worked like magic for me
> RewriteCond %{HTTP_HOST} ^sitename.com [NC] RewriteRule ^(.*)$ > https://www.sitename.com/$1 [L,R=301,NC]