MoQ: Refactoring the Internet's real-time media stack

Cloudflare announces the launch of a global Media over QUIC (MoQ) relay network, an open IETF-driven protocol designed to unify low-latency interactivity and broadcast-scale media delivery by leveraging QUIC and a publish/subscribe model of named tracks, groups, and objects. The report explains MoQ’s protocol stack (QUIC/WebTransport foundation, MoQT signaling, and pluggable streaming formats such as WARP), relay-based fanout, connection setup via ANNOUNCE/SUBSCRIBE and PUBLISH flows, and congestion-aware prioritization using subgroups and group order. It outlines Cloudflare’s initial implementation focus on SUBSCRIBE per draft-ietf-moq-transport-07, distributed state via Durable Objects, and invites developers to test the free tech preview, explore an open-source demo, and provide feedback on roadmap features and pricing expectations.