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Where Is HTTP/3? (2021)

tldr: the level of HTTP/3 support in servers is surprisingly high. The specs The specifications are all done. They're now waiting in queues to get their final edits and approvals before they will get assigned RFC numbers and get published as such - they will not change any further. That's a set of RFCs (six … Continue reading Where is HTTP/3 right now? →

They scan the top ten million sites and count how large share that runs/supports what technologies and they also check for HTTP/3. We’ve seen other numbers say h3 is faster shown before but it’s hard to find up-to-date performance measurements published for the current version of HTTP/3 vs HTTP/2 in real world scenarios. I think there are reasons to expect h3 to be faster in several situations, but for people with high bandwidth low latency connections in the western world, maybe the difference won’t be noticeable?

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