Your Browsers WebRTC is leaking your IP Address(,) to every website. This is caused by a feature called 'webrtc'. WebRTC is part of 99% of all common browsers and exposes your IP Address. This feature is enabled by default but you should disable it by default. Even a VPN/Proxy App cannot protect you against webrtc-leak. You should get a webrtc addon which can disable/enable it with simple click. There are tons of such apps but it is important that you are aware of this problematic in order to find a solution.
You can use any webrtc-shield app but we recommend following apps depending on your browser:
WebRTC Detection Result
You can see here all the information anyone can read through your WebRTC Port