Virtual private networking (VPN) provider LiquidVPN has revealed how Netflix is clamping down on services that circumvent its region-blocking systems.
Getting around Netflix’s geo-blocking checks was easy at first, said LiquidVPN, because they came from a few static sub-domains.
Proxy and VPN operators could bypass the geo-blocking checks by forwarding them to an IP address that Netflix would not flag.
Now Netflix uses “a hundred or so” random domains to send out geo-blocking checks, and these domains are being switched every few weeks.
“Plus they are geo-fencing the actual streams now as well. In the past you could forward just the geo-fencing packets to a ‘clean IP’, which is an Internet Protocol address not blocked via their VPN/proxy checks,” said LiquidVPN.
LiquidVPN said Netflix also appears to be using different blocks of addresses in different regions, making them harder to bypass without having access to multiple Netflix accounts.
This makes it more expensive for proxy and VPN services to circumvent Netflix’s geo-blocks, said LiquidVPN.
Instead of handling the data from Netflix that checks the location of a client, a service like LiquidVPN now has to essentially process all Netflix traffic through its servers.