Queried the lab resolver directly from inside the lab VLAN and compared every
record type against the public view: A, MX, TXT, CNAME, subdomains that exist
only publicly, plus records created and deleted yesterday. Not a single
divergence — the UDM holds no zone of its own and forwards live; the aa flag it
sets is a UniFi quirk and was what made the hypothesis look plausible.
That disproves the risk I asserted earlier in this issue, where I called the
pinned ACME resolvers 'load-bearing'. They are good practice, not a safety net
against W1, and the claim stood as fact for an hour. Corrected in place.
W1 is therefore documentation-only. What remains is that the purpose of the three
extra zones is recorded nowhere, which is why a blind rollback is the worse option.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>