It's not currently known exactly how Pokerstars, and other poker sites, detect VPN usage. It's likely to be one of the three following methods, however: Their website logs and stores known VPN server IPs, and when a connection is made from one of these IP addresses, the site knows that it's VPN traffic.Pokerstars uses various methods to detect and block VPN usage by players. These methods include: Blacklisting known VPN IP addresses: Pokerstars maintains a list of IP addresses associated with VPN servers. If a player attempts to connect to the website using one of these IP addresses, they will be blocked.
