Behind the scenes with Stream Live, Cloudflare’s live streaming service

What this post added

This post details the technical architecture and implementation of Cloudflare Stream Live, focusing on the ingest and viewing sides. It explains the use of Anycast IPs for low-latency broadcaster connections, Spectrum for protocol handling (RTMPS, SRT, WHIP) and security, Durable Objects for managing broadcast state and configuration, and R2 for storing original media segments. It also describes the relay architecture in Go for packet processing, normalization, and the generation of HLS/DASH playlists for viewer playback.