When the user opens a website, the browser tries to establish a TCP connection. It works if the website is using HTTP/1-2. However, it will not work if the website is using HTTP/3, since it requires QUIC. The question is: how the browser knows whether it should use TCP or QUIC?
1 Answers
Please direct yourself to the following URL down below which is the one for HTTP version 3 specifications.
https://datatracker.ietf.org/doc/html/rfc9114
Have a good one!
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