How to view the contents of a specific directory of someone else's site?

Question

FTP

Sometimes it becomes necessary, for the sake of curiosity, to look at the contents of a specific directory of someone else's site, but not always meets the joyful inscription Index of... What if the directory is closed for viewing files in it, but all files are available via links.
For example. VK has a Landing directory that stores all the landing pages of the site, for example https://vk.com/landings/music_2018, but when you go to https://vk.com/landings/ it gives 404. Actually, how to see all the contents of this folder ? Or download, for example, if it is a site with multimedia files.

Answer 1

If viewing the list is disabled, then it is disabled. And in general, there may not be any directory in the file system in reality, the URL can be generated independently of it.