How QUIC Fixed Everything Wrong with TCP: The Protocol Revolution Behind HTTP/3
In 2021, the IETF published RFC 9000, formally standardizing QUIC—a transport protocol that fundamentally rethinks how data moves across the internet. By May 2024, over 12 million IPv4 addresses were responding to QUIC handshakes, and HTTP/3 now powers roughly 36% of all websites. This wasn’t an incremental improvement. QUIC abandoned TCP entirely, building a new transport on UDP to solve problems that had accumulated over four decades of internet evolution. ...