I thought let's download and try to find out their secret sauce by reverse engineering. Their download is just a web browser client [0]. So, my guess is pg_bot

I thought let's download and try to find out their secret sauce by reverse engineering. Their download is just a web browser client [0]. So, my guess is pg_bot is right. They might be using web sockets. more details - https://webrtchacks.com/zoom-avoids-using-webrtc/ https://webrtchacks.com/zoom-avoids-using-webrtc/ [0] - https://www.zoom.us/download#client_4meeting https://www.zoom.us/download#client_4meeting