i.ytimg.com/vi/8KIsLoXNATo/maxresdefault.jpg

Download Thumbnail – Thumbnail Downloader

thumbnail link doesn't work in all cases - Stack Overflow

Download Thumbnail – Thumbnail Downloader

Download Thumbnail – Thumbnail Downloader

] Thumbnail download fails completely if maxresdefault.jpg

Download Thumbnail – Thumbnail Downloader

How to get thumbnail images in just 1 click - HANDS ON tek