Looking for a way to obtain a thumbnail image of a Vimeo video WITHOUT (I repeat, WITHOUT) having to do a REST request to the Vimeo API?
(Unfortunately, the following "answer" is over 10 years old and does NOT answer this question: Get img thumbnails from Vimeo?)
Nearly all video providers allow you to obtain a thumbnail image of a video by simply supplying the video ID within a specific URL path (i.e.: YouTube, Matterport, iGuide, etc.)
To be clear - I am NOT looking for a "solution" that uses Javascript or requires a request to be made to the Vimeo API - just a specific URL that can return a thumbnail given a Vimeo video ID.