i.ytimg.com/vi/OTtaSPHdzcs/maxresdefault.jpg
By A Mystery Man Writer
If videos are uploaded in 720p or higher, you can use
All about Thumbnail Images as ytimg maxresdefault
thumbnails extractor
All about Thumbnail Images as ytimg maxresdefault
] Thumbnail download fails completely if maxresdefault.jpg
thumbnail link doesn't work in all cases - Stack Overflow
maxresdefault thumbnails - Stack Overflow