This article applies only to Windows 2008-2012 servers with IIS7/IIS8 (sites hosted on our raptor13 or newer). It explains how to use the IIS Rewrite Module to direct incoming traffic for http://www.domainname.com to http://domainname.com, a popular thing to do for SEO.

Step 1: Download the web.config file from your site root folder.

Step 2: Open this file in your favorite text editor and insert the following redirection code inside the <configuration> tags.
 

<system.webServer>
    <rewrite>
        <rules>
            <clear />
            <rule name="nonWWW Rewrite" enabled="true">
            <match url="(.*)" />
                        <conditions>
                        <add input="{HTTP_HOST}" pattern="^www\.([^\.]+\.[^\.]+)$" />
                <!-- option more specific rule <add input="{HTTP_HOST}" pattern="^www\.(yourdomain\.com)$" /> -->
                        </conditions>
                        <action type="Redirect" url="http://{C:1}/{R:0}" appendQueryString="true" redirectType="Permanent" />
            </rule>
        </rules>
    </rewrite>
<system.webServer>

Step 3: Save the file and upload it back to your FTP


If if the <system.webServer> already exists in your web.config place the code minus the <system.webServer> tags inside the existing tag structure.