OpenVPN: OpenVPN is very secure, open-source and widely used. Most VPN services support it, but except for Chrome OS and Linux, few operating systems do. This protocol can be used in either TCP (web) or UDP (streaming) mode; the latter is sloppier but faster. You'll need either the VPN service's client software or one of the many free alternatives. Either way, you'll still need to pay for the VPN service.
That means fewer options and in some cases no options at all when Australians want to stream a TV show, play a video game, or listen to music. The lack of choice can lead to increased piracy of copyrighted material. In December 2016, a federal court in Australia ordered internet service providers to block BitTorrent tracker sites including ThePirateBay, Torrentz, TorrentHound, IsoHunt and SolarMovie.
Finally, you may want a VPN to spoof your location to download content you shouldn’t have access to, but this too has limits. A VPN used to be the go-to solution to watch U.S. Netflix overseas. That changed in 2016 when Netflix opened up to almost every country on Earth. Since then, the company has invested a lot in detecting and blocking VPN users. Even people using a VPN inside their own country will be blocked by Netflix if detected.
We summarize the protocols above, and look at them in detail in VPN Encryption: The Complete Guide. Although L2TP/IPsec is fine for most purposes, we only really recommend OpenVPN and IKEv2. OpenVPN is very secure if properly configured. Indeed, Edward Snowden’s documents showed that even the NSA can’t crack well-implemented OpenVPN. It is also supported by almost every provider. But it is relatively slow. The newer IKEv2 is much faster and is considered secure, but has not been battle-tested in the way that OpenVPN has. It is not as well supported at present, although it is increasingly popular with providers thanks to its speed advantages over OpenVPN.
The first runs in the VPN client app on your computer, so if the VPN connection fails while the VPN client app is running, that VPN client app can turn off the computer or mobile device's internet connection. However, if your VPN connection has failed because the VPN client app itself crashed, then the kill switch may not work, and your IP and data may leak onto the internet.
Opera VPN works only through the Opera web browser, and it shouldn't be used for sensitive communications. Once very fast, Opera's VPN connections were painfully slow in our most recent tests. The Opera VPN mobile apps, which were full-fledged VPN services that performed decently in our 2017 tests, unfortunately closed up shop at the end of April 2018. There's one good feature, though: Opera VPN streamed Netflix successfully from all of its server locations (there are only three of them), which is more than many paid VPN services can do.
They even offer the most generous simultaneous connection count, with six simultaneous connections through their network, where everyone else offers five or fewer. NordVPN's network isn't as large as some of their competitors, so if you're trying to obfuscate your tracks, you might want a company with more servers. Otherwise, this company is clearly providing a winning offering.