The SSH keys screen holds the public keys you can attach to a new server in the create-server wizard. Adding a key here means a new server trusts it from first boot — so you don't need the emailed root password.
Adding a key
Tap Add (read/write connections), then enter:
- Name — a label, e.g.
laptop. - Public key — paste the whole public key, e.g.
ssh-ed25519 AAAA…. Paste the public half only, never your private key.
Deleting
Tap Delete on a key and confirm. Removing a key here doesn't lock you out of servers that already trust it.
Where they're used
When you create a server, the SSH keys (optional) section lists these keys to select. If you add none, the provider sets a root password instead (Hetzner emails or shows it once).