General information

Internet speed or how fast data transfers in a network is calculated using different metrics: latency, bandwidth, and throughput.  This article aims to explain these metrics and how the TCP protocol — the way most data is transmitted over the Internet nowadays — impacts them.  Sending off your data packets […]

In December 2019 we made a minor update to Proton VPN’s Terms and Conditions and Privacy Policy reflecting that the legal party you are contracting with was changed from Proton VPN AG (Switzerland) to Proton AG (Switzerland). As Proton AG was the parent company of Proton VPN (and the 100% […]

As of Sept. 18, 2019, the Chinese government is blocking access to Proton VPN as part of a larger crackdown on Internet freedom.  The Chinese government works hard to control its citizens’ access to the Internet. The Great Firewall employs a vast system of technical tools, including DNS filtering, URL […]

Proton VPN supports most popular Internet browsers. However, Proton VPN uses cutting-edge technology that is only supported in the latest versions of these browsers. To maintain the level of security expected by our users, we occasionally need to drop support for outdated browser versions that do not have the security […]

If you are using an Android device and would like to test new builds of Proton VPN app before they’re released publicly, you can join the Proton VPN Android app beta program. Like our non-beta Android VPN application, the beta is completely free to join and use. You can get […]

OpenVPN is a VPN protocol. A VPN protocol, or a “tunneling protocol,” is the set of instructions your device uses to negotiate the secure encrypted connection that forms the network between your computer and another.  OpenVPN uses SSL/TLS to handle its key exchange, has no known vulnerabilities, supports Perfect Forward […]

After connecting to one of Proton VPN’s servers or locations, your IP address will be changed automatically.  To confirm that your IP address has been changed, please follow these simple steps: Visit our what is my IP tool and note down your IP address and location Connect to Proton VPN server […]

You can access Proton VPN using two sets of credentials, your Proton VPN login credentials, and OpenVPN / IKEv2 credentials. This article explains the difference between Proton credentials and OpenVPN / IKEv2 credentials, what they are used for, and where you can find them. Proton credentials Your Proton credentials are […]

In order to respect our users’ privacy, Proton VPN enforces a strict no-logs policy. This means we keep no session usage logs of what you do online, and we do not log metadata that can compromise your privacy.  We don’t log which websites you visit We don’t log your traffic […]

WireGuard® is a new VPN protocol used to secure the connection between your device and a VPN server.  Learn more about how VPNs work WireGuard uses state-of-the-art cryptography to keep your connection secure and, at just a few thousand lines of code, it is extremely lightweight. This makes it faster […]