[dns-operations] check if a domain has been registered via DNS
bortzmeyer at nic.fr
Thu Apr 27 14:23:07 UTC 2017
On Thu, Apr 27, 2017 at 04:13:36PM +0800,
Peng Yonghua <pyh at vodafonemail.de> wrote
a message of 21 lines which said:
> if rcode is NXDOMAIN then domain not taken.
No. Some registries (like .fr) allow registration without
delegation. Some have a "on hold" system where the domain is
temporarily not published in the DNS. And I do not even mention
redemption periods and domains not registered but not registreable
(such as the seven dirty words in .us).
Bad idea, sorry. The DNS does not replace a proper DAS.
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