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You're right that the trick is a wildcard DNS entry (indicated with asterisk) . Essentially it's a DNS entry that will match all subdomains that don't have a specific DNS entry. Then the "routing" happens on the application/website side. There is no actual DNS entry created for the subdomain, the reason that it finds a "match" when a DNS request is made, is ...


You are correct that proxying less effective when the document has lots of variations for various clients. In this case it sounds like there might only be two versions, which makes the problem a little easier. The ideal solution would proxy based on user agent. It would serve the mobile version to mobile clients and the desktop version to other clients. ...

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