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Editorial Team
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Asked: 2026-06-02T02:17:38+00:00

I have 1 IIS server that I would like to use to host 2

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I have 1 IIS server that I would like to use to host 2 different web sites (both on port 80).
I’ve been trying many different combinations (including redirects) and every time, something was breaking (redirect loops, 404, simply not working, etc…)

The rule I think I need goes something like this:

 - match any URL 
 - condition 1: match {HTTP_HOST} to my site URL 
 - condition 2: discard if {REQUEST_URI} is present 
 - action: rewrite URL to /dir1/index.html  

(repeat for site 2)

The problem here seems to be that condition 2 is never true (what should I use to match the absence of {REQUEST_URI}?

Here’s the complete XML:

<rewrite>
    <rules>
        <rule name="RuleForSite1" stopProcessing="true">
            <match url="(.*)" ignoreCase="false" />
            <conditions>
                <add input="{HTTP_HOST}" pattern="^www\.mysite1\.com$" /> 
                <add input="{REQUEST_URI}" pattern=".+" negate="true" /> 
            </conditions>
            <action type="Rewrite" url="dir1/index.html" />
        </rule>
        <rule name="RuleForSite2" stopProcessing="true">
            <match url="(.*)" ignoreCase="false" />
            <conditions>
                <add input="{HTTP_HOST}" pattern="^www\.mysite2\.com$" /> 
                <add input="{REQUEST_URI}" pattern=".+" negate="true" /> 
            </conditions>
            <action type="Rewrite" url="dir2/index.html" />
        </rule>
    </rules>
</rewrite>
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1 Answer

  1. Editorial Team

    I finally figured it out.
    It turns out that {REQUEST_URI} is never actually empty, but contains / when there’s nothing in it.
    I also found that a redirect worked out better.

    This is my final set-up:

    <rewrite>
    <rules>
        <rule name="RuleForSite1" stopProcessing="true">
            <match url="(.*)" ignoreCase="false" />
            <conditions>
                <add input="{HTTP_HOST}" pattern="^www\.mysite1\.com$" /> 
                <add input="{REQUEST_URI}" pattern="^/$"" /> 
            </conditions>
            <action type="Redirect" url="dir1/index.html" />
        </rule>
        <rule name="RuleForSite2" stopProcessing="true">
            <match url="(.*)" ignoreCase="false" />
            <conditions>
                <add input="{HTTP_HOST}" pattern="^www\.mysite2\.com$" /> 
                <add input="{REQUEST_URI}" pattern="^/$"" /> 
            </conditions>
            <action type="Redirect" url="dir2/index.html" />
        </rule>
    </rules>
</rewrite>
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