Add Twitch Spade

[berkant]

Twitch disguises requests to their tracking system under a hostname that resembles the one they use when serving video to the users. They employ a scheduled job to rotate the prefix periodically (the video-edge-41c9a6.pdx01 part), but it always resolves to the CNAME spade.sci.twitch.tv. This was once directly served over spade.twitch.tv, but after it was added to common ad filter lists, Twitch resorted to this way of enabling user tracking.

$ dig +short video-edge-41c9a6.pdx01.abs.hls.ttvnw.net # Fake video edge used to track events
spade.sci.twitch.tv.
science-edge-external-prod-73889260.us-west-2.elb.amazonaws.com.
52.10.9.205
34.210.146.165
52.41.114.21
52.34.161.102
52.33.93.28
52.41.142.156
54.69.146.250
34.214.200.59
$ dig +short video-edge-65ed1e.vie02.abs.hls.ttvnw.net # Original video edge
99.181.68.239