Video > Interaction Tools > End screen
Vimeo gives you several options to control what happens after a video is complete. You are able show more videos from your Vimeo account, add share options, or even a call to action. Most often, we want the video to go back to the start after the viewer watches it.
Select the thumbnail option to have the video go back to the start after it’s complete. If will show whatever thumbnail you uploaded for the video. For example, the above video embed has this option setup.