How does Website support work?

[decode 0]

Can anyone explain to me, how the website support explained here is working: https://airvpn.org/forum/10-websites-support/ ? I thought, that when i'm connected to any AirVPN server, the internal dns server will reroute the traffic for those specific sites to a supported server in another country. Isn't this the case? Because i'm connected to Prague and everytime i'm visiting Zattoo for example, im getting the message, that my country is not supported. So Zattoo is still seeing the Prague IP i guess...And yes, my DNS is not leaking and i'm using the DNS servers of AirVPN.