Vimeo is a video-sharing website on which users can upload, share, and view videos.
YouTube is a video-sharing website on which users can upload, share, and view videos
|Approach much more||
"The youtube approach seems much more efficient as far as amount of code and simplicity of understanding which makes me wonder why vimeo would use promises in this simple fast case"
from question "Understanding how to use JS promises"
"Vimeo will always have fewer users than youtube because the user experience is poor for low bitrate users"
from question "Average User Download Speeds"
"While vimeo is more of a professional site youtube offers html5 h.264 video playback support for all videos so they ll play on iphone"
from question "Hosting recommendations for technical screencasts"