This page tests the trickle ICE functionality in a WebRTC implementation. It creates a PeerConnection with the specified ICEServers, and then starts candidate gathering for a session with a single audio stream. As candidates are gathered, they are displayed in the text box below, along with an indication when candidate gathering is complete.

If you test a STUN server, it works if you can gather a candidate with type "srflx".

STUN servers

Time Component Type Foundation Protocol Address Port Priority
Note: errors from onicecandidateerror above are not neccessarily fatal. For example an IPv6 DNS lookup may fail but relay candidates can still be gathered via IPv4.