| . (root) | | org. | | example.org. | | sub.example.org. |
| ---------- | | ---------------- | | -------------------- | | ---------------- |
| SOA | | SOA | | SOA | | SOA |
| NS | | NS | | NS | | NS |
| DNSKEY | ┌── | DNSKEY | ┌── | DNSKEY | ┌── | DNSKEY |
| DS (org) | ──┘ | DS (example.org) | ──┘ | DS (sub.example.org) | ──┘ | AAAA |
ASCII art by @mritzmann based on a diagram I made.