Hello Kjartan,
We use Zonemaster (https://github.com/zonemaster/zonemaster/) to perform the
nameserver checks when creating a domain object.
The RIPE NCC runs a hosted service to perform these checks.
Zonemaster does *not* cache individual DNS queries/responses, but it caches
entire test
Dear colleagues,
When creating domain objects for reverse DNS delegation of a RIPE assigned
inetnum or inet6num, I have observed behaviour where entering a nameserver not
authoritative for the in-addr.arpa or ip6.arpa zone results in that nameserver
being temporarily unable to be used for