| Value | Meaning |
|---|---|
| public_ | A public, global-unicast address (or a registered name resolving only to such addresses). |
| loopback | An explicit loopback host: localhost, 127.0.0.0/8 in any numeric encoding, or [::1]. |
| privateOrLinkLocal | A private (RFC 1918), link-local, ULA, unspecified, this-host or embedded-internal address — or a fail-closed result (unresolvable host, malformed literal, or a resolved internal address). |
The trust class of a host or resolved address.