
HTTP/3 now carries a third of the web — and QUIC is just getting started
HTTP/3 runs on QUIC, a UDP-based transport that solves TCP's core limitations: head-of-line blocking, expensive TLS handshakes, and broken connections during mobile network handoffs. Google serves over 90% of its requests over QUIC today. Here is what the protocol actually does and what web developers need to know.










