Reach your machines by a fixed name even behind a changing IP address. The client reports the new address and the nameserver follows immediately.
Placeholder list. The final feature set is yours to define.
The reported address goes straight to the nameserver, with no zone reload to wait for.
One account can hold several names, each with its own update password.
A wget or ddclient is enough. Routers, NAS boxes and Linux servers can all do it.
Three steps and the name follows your machine.
After signing in you add the name and get an update password for it.
A scheduled job on the machine sends the update; the details are behind the login.
From then on the name always points at the current address.