CODEWITHSUNDEEP
.htaccessmod-rewrite
StackOverflowNewbie
StackOverflowNewbie

Reputation: 40653

.htaccess - how to force "www." in a generic way?

This will change domain.example to www.domain.example:

# Force the "www."
RewriteCond %{HTTP_HOST} !^www\.domain\.example$ [NC]
RewriteRule ^(.*)$ `http://www.domain.example/$1` [R=301,L]

How do I replace the "domain" part so that this works on any domain?

Upvotes: 112

Views: 160196

Answers (8)

Kofi Sammie
Kofi Sammie

Reputation: 3647

this worked like magic for me

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

Upvotes: -1

john mccarthy
john mccarthy

Reputation: 31

This won't work with subdomains.

domain.example correctly gets redirected to www.domain.example

but

images.domain.example gets redirected to www.images.domain.example

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]

Upvotes: 3

Gumbo
Gumbo

Reputation: 655765

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.

Upvotes: 265

Martin Drapeau
Martin Drapeau

Reputation: 1534

This will do it:

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

Upvotes: 48

Rick Hellewell
Rick Hellewell

Reputation: 1132

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)

Upvotes: 0

Amit Verma
Amit Verma

Reputation: 41249

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.

Upvotes: 1

ClickForWebs
ClickForWebs

Reputation: 57

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]

Upvotes: 4

RoUS
RoUS

Reputation: 1990

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]

Upvotes: 1

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