[dns-operations] check if a domain has been registered via DNS
ietf-dane at dukhovni.org
Fri Apr 28 17:24:43 UTC 2017
> On Apr 28, 2017, at 1:11 PM, Robert Edmonds <edmonds at mycre.ws> wrote:
> de. 172800 IN NS a.nic.de.
> de. 172800 IN NS f.nic.de.
> de. 172800 IN NS l.de.net.
> de. 172800 IN NS n.de.net.
> de. 172800 IN NS s.de.net.
> de. 172800 IN NS z.nic.de.
> ;; Received 353 bytes from 22.214.171.124#53(e.root-servers.net) in 8 ms
> com.de. 86400 IN NS ns1.centralnic.net.
> com.de. 86400 IN NS ns2.centralnic.net.
> com.de. 86400 IN NS ns3.centralnic.net.
> com.de. 86400 IN NS ns4.centralnic.net.
> ;; Received 125 bytes from 126.96.36.199#53(f.nic.de) in 114 ms
I was/am aware of the "com.de" delegation from "de."
I choose to not make much of a distinction between "uk." and "co.uk.",
or "de." and "com.de.". These are much the same sort of beast, 1LD
and 2LD public suffixes. If we we want to be strict about limiting
the discussion to 1LDs, then my only examples are nic.co, domain.co,
jobs.lk, and topjob.lk.
I should note that my sample is artificially constrained, I only collect
data on domains with DS records (or validated CNAMEs to such domains).
There are likely (many) others that I did not test or did not record.
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