Redirecting to Canonical URL in IIS7

If you are using IIS7, it’s very easy to ensure that all requests always go to your preferred canonical URL. It’s a two step process:

Step 1: Install the UrlRewrite module for IIS: http://www.iis.net/expand/URLRewrite

Step 2: Add the following rule to your applications web.config file:

&lt;configuration&gt;
 &lt;system.webServer&gt;
    &lt;rewrite&gt;
      &lt;rules&gt;
        &lt;clear /&gt;
        &lt;rule name=&quot;Redirect from www&quot; stopProcessing=&quot;true&quot;&gt;
           &lt;match url=&quot;.*&quot; /&gt;
           &lt;conditions&gt;
              &lt;add input=&quot;{HTTP_HOST}&quot; pattern=&quot;^www.yoursite.com$&quot; /&gt;
           &lt;/conditions&gt;
           &lt;action type=&quot;Redirect&quot; url=&quot;http://yoursite.com/{R:0}&quot; redirectType=&quot;Permanent&quot; /&gt;
        &lt;/rule&gt;
     &lt;/rules&gt;
   &lt;/rewrite&gt;
 &lt;/system.webServer&gt;
&lt;/configuration&gt;

IMPORTANT: When using the above code, take care to merge it with your existing web.config without duplicating any existing elements.

I like my URL’s to be in the format http://mysite.com. If you prefer http://www.mysite.com, simply remove “www.” from the <add> element and add it to the <action> element’s “url” attribute.

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3 Comments

debendranandi

August 5, 2010

Nice one...admin can more secure after implement it.

Thanks for good posting
Christian

August 31, 2010

Is this working for DotNetNuke?
edu

June 6, 2016

thanks mate!