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by ReactiveJelly 2057 days ago
I can't find any solid source for it, but I think most web video streams are TCP:

https://news.ycombinator.com/item?id=8638946

Even the live ones like Twitch.

Because they all want to run through HTML5 web browsers, re-use the same TLS as everyone else, and not write a ton of new code.

When QUIC gets big, they'll probably switch to UDP - Not cause it's better on every connection, but because it will be popular and it will be better on lossy connections. But for now TCP does work fine.

That's why youtube-dl can rip video without implementing tons of weird proprietary protocols - It's just HTTPS. Otherwise these video sites wouldn't run at all in Firefox.