There is a WebRTC Leak Test at BrowserLeaks.com. The Mullvad VPN has a tester page to insure that you are connected to their service. It also does a WebRTC test. See https://am.i.mullvad.net. In March 2018, Paolo Stagno created ip.voidsec.com. See his blog about it and the source code. VPN provider OVPN offers a WebRTC leak test.
Jun 06, 2016 WebRTC - WebRTC Glossary Jan 06, 2017 Test Your Router - RouterSecurity.org There is a WebRTC Leak Test at BrowserLeaks.com. The Mullvad VPN has a tester page to insure that you are connected to their service. It also does a WebRTC test. See https://am.i.mullvad.net. In March 2018, Paolo Stagno created ip.voidsec.com. See his blog about it and the source code. VPN provider OVPN offers a WebRTC leak test. WebRTC - Finding a Route - Tutorialspoint
Demo for:
WebRTC Leak Test: Check Your Browser for IP Leaks – Surfshark
How to Fix WebRTC Leaks (Solutions for ALL Browsers)
BrowserLeaks - Web Browser Fingerprinting - Browsing Privacy BrowserLeaks.com is all about browsing privacy and web browser fingerprinting. Here you will find a gallery of web browser security testing tools that will show you what kind of personal identity data can be leaked while browsing the Internet.