Twitter is a mess (even on #DNS):
(seen via https://www.zonecut.net/dns/ )
@cstrotm the 2 external DNS found are not visible when I redo the test ;) I guess it was a migration in progress...
(also, the big heap of arrows is the same for a "normal" dns domain like gandi.net)
@vincib The number of delegations NS records is not the problem. The problem is a parent-child delegation mismatch, see “WHEN PARENTS AND CHILDREN DISAGREE:
DIVING INTO DNS DELEGATION INCONSISTENCY” https://ripe80.ripe.net/presentations/2-RIPE80-Sommese.pdf
I still see the issue. All SOA serials are the same on all auth name server, with the TTL rather high, it does not look like a migration in progress.
It’s currently not an operational issue, but can create one down the road.
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@kazriko Den may have started small, but they are now one of the largest DNS hosting provider in the Internet (like Cloudflare, NS1, Akamai etc). Nothing wrong with using them.
