Found 3 domains on youtu.be (173.194.116.161):

1. fra07s63-in-f1.1e100.net  []
2. o-o.preferred.belwue-str1.v23.lscache1.c.youtube.com  []
3. o-o.preferred.kabelbw-str1.v7.lscache3.c.youtube.com  []


IP info: 173.194.116.161
ISP: Google
Geo: United States / Mountain View