NS_SINGLE_NAMESERVER

warning

This domain has only one nameserver, so it is one maintenance window away from disappearing.

Working today, and one change away from not working.

How we know

test
Delegation faults that need no zone of their own: a single-nameserver delegation is every other zone here, and the two total-failure codes are reached by pointing the evaluator at a server that is not there rather than by publishing a broken zone nothing else could use.