Time: November 3, 2020 12:31 UTC
Any of the domains which we host for customers and ourselves, and reverse lookups for our IP ranges were affected.
Today two times (11:08-11:20 & 12:08-12:15 CET) this issue occurred and resolved.
Our current action is updating the DNS server version we run. The issue seems related to connections PowerDNS keeps open to it’s database back-ends.
Our engineers are further investigating the cause of the issue. Please be assured that we will do our best to keep the impact as minimal as possible.