On Sat, May 29, 2021 at 09:29:22AM -0300, Rubens Kuhl via Outages <outages at outages.org> wrote a message of 28 lines which said: > All of these are on Neustar's UltraDNS I believe, So, may be a routing issue between Google and UltraDNS, making all the authoritative name servers unreachable?