[GTALUG] TLDs

[Nick Accad]

Wouldn’t checking for DNS NS record existence be a much easier way?

Not all TLDs have Whois, but everyone uses DNS

-nick

On Thu, Jul 25, 2024 at 17:02 Scott Allen via talk <talk at gtalug.org> wrote:

> On Thu, 25 Jul 2024 at 16:38, Scott Allen <mlxxxp at gmail.com> wrote:
> >> On Thu, 25 Jul 2024 at 16:27, Scott Allen <mlxxxp at gmail.com> wrote:
> > > Doing a grep on whois output for "Registrar:" (perhaps case
> > > insensitive) might be fairly reliable.
> > Even that doesn't always work. E.g.:
> > whois abc.de
> > I give up (on using whois, at least).
>
> This is assuming you want something that will work for any TLD. For a
> single given TLD, the whois output should be consistent enough that
> you could figure out something to determine if a domain is registered
> or not.
>
> For instance, for the .ca domain it looks like just checking the first
> output line for "Not found:" is sufficient to indicate a domain hasn't
> been registered.
>
>
> --
> Scott
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