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I have been looking on the web, but there aren't a detailed explanation on how it works and not the concept of what it is for. There are really two things that I don't understand.

  1. How does it fake the client location?

My understanding on DNS is that it resolves a URL into an IP and give it to the browser then the browser and the OS deals with connecting to that IP. So I don't quote understand how a smart DNS can fake clients location

  1. Where do smart DNS fake the client location to?

My guess is that they fake the client location to where the server that they are trying to connect locates but this does not ensures that it would unlock a region locked service si CE the server may just be located in other countries. Or would they have a list of region locked services and lists of where to fake the client location bit this also doesn't ensure that it has full list of services.

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Smart DNS is just a fancy name for a DNS proxy. It does not change your IP.

It only works as long as the website relies only on DNS to do location-based routing. Were the website to actually check for the user's IP at every request, it would know the actual location of the user.

Answer from elsewhere

Let's suppose that you are in UK but want to access a blocked site examplesite.com in US (whose IP address is x.x.x.x).

  1. You query the smart DNS asking to resolve examplesite.com
  2. As the smart DNS provider knows that examplessite.com is a blocked site, instead of resolving it as x.x.x.x, it resolves it as y.y.y.y.

y.y.y.y is a proxy server of the smart DNS provider which is in the US.

As a result you are connecting to examplessite.com by using the Smart DNS proxy.

In fact smart DNS are often called smart DNS proxy servers.

Hope this will help you understand how smart DNS work.

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    Your answer and the answer you quoted contradict each other. Your write it's only a "dns proxy and does not change/ hide your ip". The quoted answer says "... instead of resolving it as x.x.x.x, it resolves it as y.y.y.y...y.y.y.y is a proxy server...as a result you are connecting to examplessite.com by using the Smart DNS proxy", which I understand that the whole traffic is going through the proxy, not only the dns queries. Afaik the quoted answer is wrong and imo very misleading.
    – gucki
    Sep 23, 2020 at 9:22

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