Best-Effort Scan of Twitch’s CDN in Europe
Hsuan-Yu Chou, Yu-Ting Huang, Polly Huang · 2023
Twitch is a live video service that is a leader in game streaming with 20 billion annual viewing hours and an annual viewer growth rate of +26%. To sustain this load and growth rate, Twitch maintains a content distribution network (CDN) to ensure high service quality and to distribute load. Its CDN is a critical online infrastructure that should be better understood. To supplement recent works attempting to measure Twitch’s CDN that crawled few active channels (~2%) and focused on mapping the CDN, we aimed to (1) scan the channels as complete as possible, which we refer to as a best-effort scan and (2) infer the server allocation scheme behind.