As far as I'm aware there aren't any public CDNs that support the sub-200ms approaches which don't involve buying a full solution from that vendor. * Limelight

As far as I'm aware there aren't any public CDNs that support the sub-200ms approaches which don't involve buying a full solution from that vendor. * Limelight's solution is only really accessible through their low latency streaming products provided by Red5. * Fastly and Akamai are both chasing Ultra low latency through chunked CMAF delivery. On a slightly smaller scale, Cloudflare supports websockets, so you could use a protocol like the one Wowza are using (WOWZ). https://blog.cloudflare.com/cloudflare-now-supports-websockets/ https://blog.cloudflare.com/cloudflare-now-supports-websocke... If you're interested in a toolkit to build out a webRTC style CDN edge, I think the best place to start would probably be with Gstreamer's new WebRTC tooling https://opensource.com/article/19/1/gstreamer https://opensource.com/article/19/1/gstreamer