[dns-operations] check if a domain has been registered via DNS

[David Conrad]

Andrew,

On Apr 28, 2017, 11:44 AM -0700, Andrew Sullivan <ajs at anvilwalrusden.com>, wrote:
> On Fri, Apr 28, 2017 at 01:06:57PM -0400, Mark Jeftovic wrote:
> > But you cannot machine it or automate it (at least you're not supposed
> > to and if you game a way to do it, it can't be counted as reliable).
> >
> > And there are reasons why you might want to (mail servers may want to
> > soft bounce emails from domains in an expired state, I personally want
> > to never see an email again from a domain cloaked with whois privacy.)
> >
> > Or as Paul Vixie said, to be able to blackhole entire Registrars. I
> > would love that.
>
> These are all excellent examples of where RDAP with anonymous access
> would excel: it's parsable, you can ask for specific things, and
> differential access means you could make just some small subset of
> stuff public.

Use of RDAP here seems largely irrelevant to the use case Mark and Paul are talking about, i.e., automated bulk queries.

Do you think registries/registrars will not rate limit RDAP (differentiated access or not)?

Regards,
-drc

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