513
votes

I would like to redirect www.example.com to example.com. The following htaccess code makes this happen:

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

But, is there a way to do this in a generic fashion without hardcoding the domain name?

24
It's important to be aware that if you don't use a www (or some other subdomain) then all cookies will be submitted to every subdomain amd you won't be able to have a cookie-less subdomain for serving static content thus reducing the amount of data sent back and forth between the browser and the server. Something you might later come to regret: twitter.com/codinghorror/statuses/1637428313Sam Hasler
Another thing to consider, make sure you're setting the canonical name without the www in your pages, to avoid a possible duplicate content penalty. Also if you have absolute urls in your links make sure they're all non-www as well.Jeremy Morgan
On my mind its better to keep the explicit redirection, especially when copying the configuration for another domain, that might require different tuning (www domain is better in some cases) weboptimizer.ch/2014/01/redirection-wwwsnowflake
Any reason why this solution would work for all cases except the root url? For example domain.com does not piont to domain.com, whereas domain.com/page1 does redirect to domain.com/page1.Jeff Solomon
If you wish to redirect www to non-www whilst maintaining the protocol (HTTP or HTTPS) then see this related question: Redirecting www to non-www while maintaining the protocol HTTP or HTTPSMrWhite

24 Answers

937
votes
RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]

Same as Michael's except this one works :P

116
votes

But if we need to do this for separate http and https:

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

RewriteCond %{HTTPS} on
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]
72
votes

Redirect non-www to www (both: http + https)

RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} !^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]

RewriteCond %{HTTPS} on
RewriteCond %{HTTP_HOST} !^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}/$1 [R=301,L]
46
votes

If you want to do this in the httpd.conf file, you can do it without mod_rewrite (and apparently it's better for performance).

<VirtualHost *>
  ServerName www.example.com
  Redirect 301 / http://example.com/
</VirtualHost>

I got that answer here: https://serverfault.com/questions/120488/redirect-url-within-apache-virtualhost/120507#120507

33
votes

Here are the rules to redirect a www URL to no-www:

#########################
# redirect www to no-www
#########################

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

Here are the rules to redirect a no-www URL to www:

#########################
# redirect no-www to www
#########################

RewriteCond %{HTTP_HOST} ^(?!www\.)(.+) [NC]
RewriteRule ^(.*) http://www.%1/$1 [R=301,NE,L]

Note that I used NE flag to prevent apache from escaping the query string. Without this flag, apache will change the requested URL http://www.example.com/?foo%20bar to http://www.example.com/?foo%2250bar

13
votes
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^/(.*)$ https://%1/$1 [R]

The RewriteCond captures everything in the HTTP_HOST variable after the www. and saves it in %1.

The RewriteRule captures the URL without the leading / and saves it in $1.

8
votes

Complete Generic WWW handler, http/https

I didn't see a complete answer. I use this to handle WWW inclusion.

  1. Generic. Doesn't require domain info.
  2. Forces WWW on primary domain: www.domain.com
  3. Removes WWW on subdomains: sub.domain.com
  4. Preserves HTTP/HTTPS status.
  5. Allows individual cookies for domain / sub-domains

Please let me know how this works or if I left a loophole.

RewriteEngine On
RewriteBase /

# Force WWW. when no subdomain in host
RewriteCond %{HTTP_HOST} ^[^.]+\.[^.]+$ [NC]
RewriteCond %{HTTPS}s ^on(s)|off [NC]
RewriteRule ^ http%1://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

# Remove WWW. when subdomain(s) in host     
RewriteCond %{HTTP_HOST} ^www\. [NC]
RewriteCond %{HTTPS}s ^on(s)|off [NC]
RewriteCond http%1://%{HTTP_HOST} ^(https?://)(www\.)(.+\.)(.+\.)(.+)$ [NC]
RewriteRule ^ %1%3%4%5%{REQUEST_URI} [R=301,L]
7
votes

Try this:

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

If the host starts with www, we stick the whole host onto the start of the URL, then take off the "www."

7
votes

There can be a lot of misinformation out there about htaccess redirects, I find. First off, make sure your site is running on Unix using Apache and not on a Windows host if you expect this code to work.

RewriteEngine On

RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]

RewriteRule ^(.*)$ http://%1/$1 [R=301,L] 

(Make sure there are no line spaces between each line of text, though; I have added an extra space between lines so it renders okay in this window.)

This is one snippet of code that can be used to direct the www version of your site to the http:// version. There are other similar codes that can be used, too.

4
votes
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://%1/subfolder/$1 [R=301,L]

For subfolder

3
votes

For those that need to able to access the entire site WITHOUT the 'www' prefix.

RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]
RewriteRule ^ http%{ENV:protossl}://%1%{REQUEST_URI} [L,R=301]

Mare sure you add this to the following file

/site/location/.htaccess 
2
votes

I used the above rule to fwd www to no www and it works fine for the homepage, however on the internal pages they are forwarding to /index.php

I found this other rule in my .htaccess file which is causing this but not sure what to do about it. Any suggestions would be great:

############################################
## always send 404 on missing files in these folders

    RewriteCond %{REQUEST_URI} !^/(media|skin|js)/

############################################
## never rewrite for existing files, directories and links

    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_FILENAME} !-l

############################################
## rewrite everything else to index.php

    RewriteRule .* index.php [L]
2
votes

www to non www with https

RewriteEngine on

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

RewriteCond %{HTTPS} !on
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
2
votes
RewriteEngine on
# if host value starts with "www."
RewriteCond %{HTTP_HOST} ^www\.
# redirect the request to "non-www"
RewriteRule ^ http://example.com%{REQUEST_URI} [NE,L,R]

If you want to remove www on both http and https , use the following :

RewriteEngine on
RewriteCond %{HTTP_HOST} ^www\.
RewriteCond %{HTTPS}s ^on(s)|offs
RewriteRule ^ http%1://example.com%{REQUEST_URI} [NE,L,R]

This redirects Non ssl

to

And SSL

to

on apache 2.4.* you can accomplish this using a Redirect with if directive,

<if "%{HTTP_HOST} =='www.example.com'">
Redirect / http://example.com/
</if>
2
votes

use: Javascript / jQuery

// similar behavior as an HTTP redirect
window.location.replace("http://www.stackoverflow.com");
// similar behavior as clicking on a link
window.location.href = "http://stackoverflow.com";

Or .htaccess:

RewriteEngine On
RewriteBase /
Rewritecond %{HTTP_HOST} ^www\.yoursite\.com$ [NC]
RewriteRule ^(.*)$ https://yoursite.com/$1 [R=301,L]

and The PHP method:

$protocol = (@$_SERVER["HTTPS"]    == "on") ? "https://" : "http://";

if (substr($_SERVER['HTTP_HOST'], 0, 4) !== 'www.') {
    header('Location: '.$protocol.'www.'.$_SERVER    ['HTTP_HOST'].'/'.$_SERVER['REQUEST_URI']);
    exit;
}

Ajax

$.ajax({
    type: "POST",
    url: reqUrl,
    data: reqBody,
    dataType: "json",
    success: function(data, textStatus) {
        if (data.redirect) {
            // data.redirect contains the string URL to redirect to
            window.location.href = data.redirect;
        }
        else {
            // data.form contains the HTML for the replacement form
            $("#myform").replaceWith(data.form);
        }
    }
});
2
votes

Using .htaccess to Redirect to www or non-www:

Simply put the following lines of code into your main, root .htaccess file. In both cases, just change out domain.com to your own hostname.

Redirect to www

<IfModule mod_rewrite.c>
  RewriteEngine on
  RewriteCond %{HTTP_HOST} ^domain\.com [NC]
  RewriteRule ^(.*)$ http://wwwDOTdomainDOtcom/$1 [L,R=301]
</IfModule>

Redirect to non-www

<IfModule mod_rewrite.c>
  RewriteEngine on
  RewriteCond %{HTTP_HOST} ^www\.domain\.com [NC]
  RewriteRule ^(.*)$ http://domainDOTcom/$1 [L,R=301]
</IfModule>

change DOT to => . !!!

1
votes

The only way I got it to work...

RewriteEngine On
RewriteCond %{HTTP_HOST} ^site\.ro
RewriteRule (.*) http://www.site.ro/$1 [R=301,L]
1
votes

If you are forcing www. in url or forcing ssl prototcol, then try to use possible variations in htaccess file, such as:

RewriteEngine On
RewriteBase /

### Force WWW ###

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

## Force SSL ###

RewriteCond %{SERVER_PORT} 80 
RewriteRule ^(.*)$ https://example.com/$1 [R,L]

## Block  IP's ###
Order Deny,Allow
Deny from 256.251.0.139
Deny from 199.127.0.259
1
votes

This is updated to work on Apache 2.4:

RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} ^www\.(.*)$
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]

The only change vs Michael's is to remove the [NC], which produces the "AH00665" error:

NoCase option for non-regex pattern '-f' is not supported and will be ignored

1
votes

The selected answer and many other solutions here dropped the the part of the url after /, so basically it always redirected to main domain, at least for me.. So i am adding working sample respecting full path after slash..

RewriteEngine On
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://%1%{REQUEST_URI} [L,R=301]
1
votes

Alternative approach if .htaccess customization is not ideal option:

I've created simple redirect server for public use. Just add A or CNAME record:

CNAME   r.simpleredirect.net
A       89.221.218.22

More info: https://simpleredirect.net

0
votes

I am not sure why u want to remove www. But reverse version would be:

# non-www.* -> www.*, if subdomain exist, wont work
RewriteCond %{HTTP_HOST} ^whattimein\.com
RewriteRule ^(.*)$ http://www.whattimein.com/$1 [R=permanent,L]

And advantage of this script is: if u have something like test.whattimein.com or any other (enviroments for developing/testing) it wont redirect U to the original enviroment.

0
votes

Added if localhost, ignore redirection (for development purpose in local environment). If not localhost AND (not https OR it’s www), redirect to https and non-www.

RewriteEngine On

RewriteBase /
RewriteCond %{HTTP_HOST} !localhost [NC]
RewriteCond %{HTTPS} off [OR]
RewriteCond %{HTTP_HOST} ^www\. [NC]
RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R=301,L]
-3
votes

Hi you can use following rules on your htaccess file:

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