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Google DNS Oddity

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 our
> London 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.