Bit Matrix » web http://blog.bit-matrix.com Tech. Code. Linux. MySQL. Ones. Zeroes. Tue, 31 Aug 2010 01:10:39 +0000 http://wordpress.org/?v=2.9 en hourly 1 Lower-case all URLs with Apache mod_rewrite http://blog.bit-matrix.com/2010/02/05/lower-case-all-urls-with-apache-mod_rewrite/ http://blog.bit-matrix.com/2010/02/05/lower-case-all-urls-with-apache-mod_rewrite/#comments Fri, 05 Feb 2010 20:46:36 +0000 Bit Matrix http://blog.bit-matrix.com/?p=109 Search engines, like Google, will index URLs on your site in a case-sensitive fashion, so www.yoursite.com/iamtest shows up as a different page than www.yoursite.com/iAmTest. This has negative consequences for your search rankings as these different URLs will be interpreted as duplicate content.

In this case we want to re-direct our users and any bots to the same version of the URL (i.e. all lowercase). If you are running Apache, make sure mod_rewrite is installed and make the following changes to your configuration.

1. In your server config or virtual host file:
RewriteMap lc int:tolower

2. In your .htaccess file at the root of your site:

# Lower-case and 301 all requests
RewriteEngine On
RewriteCond %{REQUEST_URI} [A-Z]
RewriteRule ^(.*)$ /${lc:$1} [L,R=301]

Note: Beware that some standard files are mixed case and might be broken by doing this (such as AC_RunActiveContent.js).

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