QUIC

Introduction The web has been built on a series of incremental protocol improvements. From the original HTTP/0.9, through the widely‑deployed HTTP/1.1, to the multiplexed, binary HTTP/2, each version has tackled the performance bottlenecks of its predecessor. Yet, the underlying transport layer—TCP—has become a limiting factor in an era dominated by mobile devices, high‑latency networks, and ever‑growing media payloads. Enter HTTP/3, the first major web protocol that abandons TCP entirely in favor of QUIC (Quick UDP Internet Connections), a transport protocol built on top of UDP. HTTP/3 promises faster connection establishment, reduced head‑of‑line blocking, built‑in encryption, and smoother migration across network changes. In this article we will: ...