Does PubNub support the UDP protocol? Craig Conover November 04, 2020 22:56 Updated No. PubNub client libraries communicate over a TCP socket connection only. Related articles Does PubNub use a lot of battery power? Custom origin - what is it and how to use it Configuring Proxies Why do I see multiple GET requests in the browser console? Does PubNub use WebSockets or some other protocol?