ccryx [he/him]

You can use man <command> (in this case man cut) to read a program’s manual page. Appending --help (without any other arguments will often produce at least a short description of the program and list the available options.

I’m also using Caddy with desec and get the same result when adding a new subdomain. It fixes itself after a while though (10+ minutes). Maybe try waiting a little longer.