Thumbnail URLs

This Links will guide you to your Youtube Thumbnail:

https://img.youtube.com/vi//default.jpg
https://img.youtube.com/vi//hqdefault.jpg
https://img.youtube.com/vi//mqdefault.jpg
https://img.youtube.com/vi//sddefault.jpg
https://img.youtube.com/vi//maxresdefault.jpg

They are available, until your video will be removed.

I do not guarantee the reliability of the information given here, the code described on this page is executed at your own risk and in the event of damage or other unforeseeable consequences I am in no way responsible or liable.