What is a "DNS Leak"?

Each time your computer translates a hostname like eff.org to an IP address, it does so by using Domain Name System (DNS) servers. Those servers are supplied by your Internet Provider and almost always your ISP would be the one in control of them. While your Internet Provider can't see exactly what you do when you visit a domain (like eff.org), if you're using VPN, they can still see that you're visiting it.
Some VPN Apps would not force the DNS requests through their own DNS servers and would expose the hostnames of domains/services you're using to your Internet Provider.
While this affects all operating systems, Windows is especially vulnerable due to multi-home DNS system, which is what many VPN apps fail to anticipate. This goes against the common sense of privacy and so we recommend that you test your VPN provider for DNS leaks here with our tests. As long as the DNS servers in the results of our tests are not part of your Internet Providers network, then this is a good indication that your VPN is working fine.

What does "WebRTC Leak" mean?

WebRTC is a free, open-source project that provides web browsers and mobile applications with real-time communication (mainly video/audio) via simple application programming interfaces. Among some of the applications that use WebRTC are Google Hangouts, Facebook Messenger, Discord, Amazon chime.
Unfortunately the STUN protocol (as defined in RFC 3489) which his part of WebRTC would can reveal your IP address with ease to malevolent web sites. Therefore WebRTC is considered an obstacle to online privacy.

It goes without saying that if you care about online privacy you should buy VPN, however quite a few VPN Apps may leak your IP address by exploiting WebRTC. Our web site tests show if your WebRTC is leaking and if your real IP address is exposed.

What is an "IPv6 Leak"?

For some time now there is a negative hype that the Internet is running out of IP addresses (each computer on the internet has an IP address), thus IPv6 protocol has been invented many years ago and gradually the Internet is moving house to IPv6, but it's still few years away from fully making the switch. Some VPN Apps were created only with consideration to protect your IPv4 address (the one everyone has) and some try and fail to protect your IPv6 address (if you have one) and would therefore expose your real location via your IPv6 address to web sites/services. This is an IPv6 leak and our web site shows if you have one.

Do you recommend any VPN service?

This web site is powered by VPNArea.com and we take extra effort in protecting our members from IP leaks, part of the reason we created this site. If you're in the market for a VPN service we recommend you give VPNArea a try, there is A LOT to like and there is a money back guarantee.
If you want to read an independent up-to-date VPNArea review by an honest and unbiased expert on privacy and VPN companies you can check out RestorePrivacy.com.

VPNArea is also one of the endorsed VPN providers by PrivacyTools.io, an authority on online privacy.