WebRTC can leak your private IP address, even though you are using a VPN, from what I learn here.

Am I protected against this information leak affecting my privacy, when I'm using the incognito or private browsing mode in my browser along with a VPN connection? In other words, is my private IP address hidden from the websites I visit?

1 Answer 1


Unfortunately both internal and external IP addresses are still exposed even when you're browsing in incognito/private mode. In your case not only your internal network IP-address and the internal VPN IP-address will be exposed but also the external ISP IP address.

You can test it for example here:

https://ipleak.net/ (seems offline) https://www.browserleaks.com/webrtc

Chrome and Firefox leak this information even in incognito/private mode. Although there is a fix:

For Firefox


For Google Chrome


  • 1
    Sadly, WebRTC does not expose only the local and VPN public IP addresses, but also the user's ISP provided public address behind the VPN (the very address you try to hide using the VPN). See for instance this page (or search words like "webrtc stun vpn" in your favorite search engine for more references). Jun 21, 2016 at 8:49
  • @WhiteWinterWolf good call, I changed the answer.
    – Bob Ortiz
    Jun 21, 2016 at 8:53

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .