this is done with a redirect. you have two options:
the first is an IIS redirect rule.
https://zcusa.951200.xyz/en-us/iis/configuration/system.webserver/httpredirect/
the other is in global.asax, in Application_BeginRequest check the path and do a redirect.
note: if you are using a load balancer, or firewall, they typically have their own redirect capabilities .