TL;DR Which CDN is best?” is the wrong question the right one is “which CDNs are good enough right now?” This is the story of four attempts at CDN selection at Mux and the solution we finally built to answer it in 9.9ms. CDN selection sounds simple: pick the best CDN for each viewer. But “best” is where it gets tricky.
How Mux chooses a CDN in 9.9ms
calendar_today
August 3, 2026
domain
mux-com