Nick Hilliard wrote on 06/09/2019 21:19:
Chip Marshall via NANOG wrote on 06/09/2019 20:11:Hello, I'm seeing an oddity when doing DNS lookups for www.google.com from ourLondon datacenter, and I'm curious if other people are seeing the same behavior.I saw a bunch of monitoring systems queries for www.google.com/A return back with no A records at ~20:35 BST. It's returned back to normal now, but we needed to flush a bunch of DNS caches.
... aaaand there we go again at 22:07 BST. Nick