Not checking all download links

[robloxer3k]

is not possible to make it when I enter the link and go to download, the link get updates to confirm that there is a file and is online, like if was sending info to a server and for other people it would say if is online(last time checked from the last user)

what I mean is, a user could manual check what file is on each link and then it save on a server, so other people could use that info