URL Rewrite

Common Rewrite Rules

Redirect to www

# Add WWW Prefix
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{HTTP_HOST} ^example\.com [NC]
    RewriteRule ^(.*)$ http://www.example.com/$1 [L,R=301,NC]
</IfModule>

Redirect to non-www

# Remove WWW Prefix
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{HTTP_HOST} ^www\.example\.com [NC]
    RewriteRule ^(.*)$ http://example.com/$1 [L,R=301]
</IfModule>

Redirect Single Page

# Redirect page
Redirect 301 /old.html /new.html

Redirect Entire Site

# Redirect entire domain
Redirect 301 / http://www.example.com

Redirect Mobile Users

# Redirect mobile devices
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{HTTP_ACCEPT} "text\/vnd\.wap\.wml|application\/vnd\.wap\.xhtml\+xml" [NC]
    RewriteCond %{REQUEST_URI} ^/$
    RewriteRule ^ http://m.example.com%{REQUEST_URI} [R,L]
</IfModule>

Block IP Addresses

# Block IP addresses
Order Deny,Allow
Deny from 1.2.3.4

Block All Except IP Addresses

# Block all except IP addresses
Order Deny,Allow
Deny from all
Allow from 1.2.3.4

Block Bad Bots

# Block bad bots
<IfModule mod_rewrite.c>
    RewriteEngine On 
    RewriteCond %{HTTP_USER_AGENT} ^Bot [OR]
    RewriteCond %{HTTP_USER_AGENT} ^AnotherBotName
    RewriteRule ^.* - [F,L]
</IfModule>

Application-Specific Rewrite Rules

WordPress

To enable permalinks within WordPress:

1. Login to your WordPress dashboard
2. Hover over Settings on the menu
3. Choose Permalinks from the menu that appears
4. Choose one of the available permalink structures
5. Click the Save Changes button

Linux (.htaccess)

This file is generated by WordPress automatically when Permalinks are enabled using the instructions above. It is provided here for reference.

# Wordpress permalinks
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /
    RewriteRule ^index\.php$ - [L]
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule . /index.php [L]
</IfModule>

Windows (web.config)

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <rewrite>
            <rules>
                <rule name="WordPress Permalinks - Homepage" stopProcessing="true">
                    <match url="^index\.php$" />
                    <action type="None" />
                </rule>
                <rule name="WordPress Permalinks - All Requests" stopProcessing="true">
                    <match url=".*" />
                    <conditions>
                        <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
                        <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
                    </conditions>
                    <action type="Rewrite" url="index.php" />
                </rule>
            </rules>
        </rewrite>
    </system.webServer>
</configuration>