When a detect VPN is used, data becomes encrypted, which makes it look different from any snoopers tools that might be running on the other end of the connection. It’s possible to detect whether someone is using a VPN by studying their internet traffic. If the IP address doesn’t tally with the country of residence, or if there is tunneling involved, that indicates the device is being protected by a VPN.

Some websites, such as online casinos and e-commerce sites, block VPN users so that they can’t access their content. This is usually done to prevent people from bypassing geo-blocks, or for security reasons.

Many VPNs allow you to change servers regularly, and this can help avoid detection. It also helps to use a VPN service with obfuscated servers, which make your encrypted VPN traffic look like regular internet traffic.

VPN Detection Methods: A Closer Look at IP Geolocation

If you’re using a VPN on your phone or laptop, it might be worth switching to a service that offers this option. This will make it harder for the VPN to be detected, and it might also improve your browsing speed.

Some VPNs also offer obfuscated ports that can help you get around blocks set up by websites and apps. For example, some of them redirect your VPN traffic to port 443 instead of port 1194 — which many firewalls monitor for OpenVPN connections. This can help you overcome many VPN blocks, including those on streaming services and e-commerce sites.