Often, but not always: https://en.wikipedia.org/wiki/TCP_Fast_Open | Hacker News

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		lxgr on May 28, 2024 \| parent \| context \| favorite \| on: API Shouldn't Redirect HTTP to HTTPS Often, but not always: https://en.wikipedia.org/wiki/TCP_Fast_Open

hiatus on May 28, 2024 [–]

> TFO has been difficult to deploy due to protocol ossification; in 2020, no Web browsers used it by default.[2]

gsich on May 28, 2024 | [–]

It's in use by Android for DNS over TLS. Ossification issues are exaggerated.

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