When you upload a new video on Vimeo, automatically upload a YouTube video from a specified URL.

Vimeo is a video-centric social networking site which launched in November 2004. The site supports embedding, sharing, video storage, and user-commenting on each video page.
YouTube is a video-sharing website on which users can upload, share, and view videos. Use Applets to manage your liked videos, get notified about new uploads from your subscriptions, and grow your YouTube subscribers by automatically letting the world know when you post something new to your channel. https://www.youtube.com/t/terms