Classify host WITHOUT performing DNS resolution: IP literals (every numeric
IPv4 encoding and IPv6 incl. embedded-IPv4/ULA/link-local/loopback) and the
explicit loopback names (localhost) are classified directly; any registered
hostname is treated as public_ (a lexical pre-filter cannot know what it
resolves to — the resolve-and-pin connector makes the authoritative call).
@safe pure nothrow @nogc.
Classify host WITHOUT performing DNS resolution: IP literals (every numeric IPv4 encoding and IPv6 incl. embedded-IPv4/ULA/link-local/loopback) and the explicit loopback names (localhost) are classified directly; any registered hostname is treated as public_ (a lexical pre-filter cannot know what it resolves to — the resolve-and-pin connector makes the authoritative call). @safe pure nothrow @nogc.