News for hackers. Stuff that matters.
Re:Ask HN: Which sites are using websocket in 2020? by frompdx on Tuesday May 19, 2020 @12:59PM (#23237155)
Overleaf.com uses websockets for collaborative LaTeX editing. I personally think making a nice git workflow for non-technical academic types who are stuck using LaTeX might have been better.

Slack and probably any other chat app.

A certain hardware vendor for networking equipment uses websockets to tell device's when a user wants to establish a connection to that device. Websockets are used to broker webrtc/p2p connections in that case.

Re:Ask HN: Which sites are using websocket in 2020? by cc_419 on Tuesday May 19, 2020 @11:29AM (#23235929)
Basically all crypto exchanges.
Re:Ask HN: Which sites are using websocket in 2020? by raztogt21 on Tuesday May 19, 2020 @12:46PM (#23236997)
I vouch for this.
Re:Ask HN: Which sites are using websocket in 2020? by withzombies on Tuesday May 19, 2020 @11:36AM (#23236003)
Any site that does ad blocker detection
Re:Ask HN: Which sites are using websocket in 2020? by bitpush on Tuesday May 19, 2020 @12:36PM (#23236892)
figma.com, for multiplayer