in existing production we have URL structure as follows https://mainsite.com/subsite

Now the sub site URL structure changed as follows https://mainsite.com/newsubsite/subsite2

We want to redirect old sub site landing page and all the inner pages to redirect to new url structure I.e., when user browse https://mainsite.com/subsite it should redirect to https://mainsite.com/newsubsite/subsite2

And when user browse https://mainsite.com/subsite/innerpage it should redirect to https://mainsite.com/newsubsite/subsite2/innerpage

The inner page name don't have any name changes. Just need to replace "subsite" with "newsubsite/subsite2"

Edit: one more scenario need to handle. Some times language code e.g.: "en" will come in the URL as like below https://mainsite.com/en/subsite

In this case it need to redirect to https://mainsite.com/en/newsubsite/subsite2

Same for inner pages as well

Any body help me to create a generic rewrite rule to do this job.

2 Answers 2


A simple rule like that will do the trick:

<rule name="subsite rule" stopProcessing="true">
    <match url="^([a-z]{2}(\-[a-z]{2})?/)?subsite(/.*){0,1}$" />
    <action type="Redirect" url="/{R:1}newsubsite/subsite2{R:3}" appendQueryString="true" />

Remember to recycle app pool after you edit your config - simple site restart related to config change is not enough usually.

Match is for the urls starting (optionally with language code either 2 letters like en or 4 letters with hyphen like en-us), and then with subsite and then either nothing after it or urls starting with subsite/, e.g.


Whatever comes after subsite will be added to resulting url after /newsubsite/subsite2.

appendQueryString="true" makes sure that if there is query string, it will be included in the new url as well.

  • this is perfectly working fine. but I found one more scenario and added to the question. your help is very much appreciated
    – shahul
    May 26, 2023 at 9:33
  • answer updated.
    – Marek Musielak
    May 26, 2023 at 12:05
  • Thanks. it worked perfectly.
    – shahul
    May 29, 2023 at 6:40

You can redirect your existing production we have URL to sub site URL as below

<rule name="ms1" stopProcessing="true"> 
<match url="^subsite/?$" /> 
<conditions logicalGrouping="MatchAny"> <add input="{HTTP_HOST}" 
pattern="^(mainsite.com|www.mainsite.com)$" /> </conditions> 
<action type="Redirect" url="https://mainsite.com/newsubsite/subsite2" /> </rule>

I tested this with my instance URL and it is working as expected.

Hope this helps.

  • this will not append inner page urls
    – shahul
    May 26, 2023 at 10:29
  • have you tried this, is it not appending inner page urls? May 26, 2023 at 13:51
  • Hi @Rishiraj, thanks you for you help. Marek answer is working for me. so I have used that.
    – shahul
    May 29, 2023 at 6:43

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