Various Relevant Mirrors
There are a variety of other CTF mirrors I keep on this site on the off chance that the main sites go away some day. Some of them are hidden since there's no need to take traffic away from the actual authors, but I'm just trying to keep a running institutional memory (from the internet as it were) of many different CTF websites. So if you don't see something here of yours you'd like to see mirrored, just ask
! Alternatively, just keep checking back if a favorite resource of yours goes down.