IIS HTTP Redirect too many times error

Question

I am in process of shifting my website i.e MBAHunt.in to an IIS server but I am having a difficulty setting up an SSL redirection for my website in IIS.  I want to shift it from non-www to www.

I am getting ERR_TOO_MANY_REDIRECTS error. Since I'm not an expert I am not sure how to solve this issue.

I have tried the below code but no luck

<system.webserver>
<rewrite>
<rules>
<rule name=”Redirect to WWW” stopprocessing=”true”>
<match url=”.*”></match>
<conditions>
<add input=”{HTTP_HOST}” pattern=”^yourdomainname.com$”></add>
</conditions>
<action type=”Redirect” url=”http://www.yourdomainname.com/{R:0}” redirecttype=”Permanent”>
</action></rule>

<rule name=”Default Document” stopprocessing=”true”>
<match url=”(.*?)/?default.aspx$”>
<action type=”Redirect” url=”{R:1}/”>
</action></match></rule>
</rules>
</rewrite>
</system.webserver>

Please anyone help me solve this issue? What could be the problem?

Thanks in advance.

Answer 1

Hello Rudraa,

Thank you for your question and for reaching out with your question today.

I've had a look at your code snippet and there might be a few issues that could potentially cause the redirection loop you're experiencing. Here's an altered version of the code with explanations:

<system.webServer>
  <rewrite>
    <rules>
      <!-- Redirect to www with HTTPS -->
      <rule name="Redirect to www" stopProcessing="true">
        <match url=".*" />
        <conditions>
          <!-- Check if the host is NOT www.yourdomainname.com -->
          <add input="{HTTP_HOST}" pattern="^www\.yourdomainname\.com$" negate="true" />
        </conditions>
        <!-- Redirect to https://www.yourdomainname.com -->
        <action type="Redirect" url="https://www.yourdomainname.com/{R:0}" redirectType="Permanent" />
      </rule>
    </rules>
  </rewrite>
</system.webServer>

Please note the following:

1. In the <add> condition, the pattern should be ^www\.yourdomainname\.com$ with the \ to escape the dots. This condition checks if the host is NOT www.yourdomainname.com.

2., The redirection URL starts with https://, indicating that the redirection should use HTTPS.

3. The negate="true" attribute ensures that the rule doesn't trigger if the host is already www.your domain name. com, preventing a redirection loop.

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