Re: [apps-discuss] "finding registered domains"

["John R Levine" <[e-mail]>]

>> I agree that use cases would help a lot.  The ones I'm aware of are:
>
> Another one I had at $DAYJOB: we make statistics about the "most
> frequently requested" domains on our authoritative name servers. Of
> course, we want foo.bar.example.fr and machin.example.fr to be counted
> both as "example.fr". Some DNS statistics program (like DSC) do it
> blindly, just by the number of labels. But .fr delegates both at the
> 2nd and 3rd level (gouv.fr, asso.fr, tm.fr...). We had to use Mozilla
> Public Suffix List (via the excellent
> <http://www.dkim-reputation.org/regdom-libs/>) for that (for .fr, we
> know the registration rules and could have hardwired them, but the
> program had to work for other TLD).

If you're running an authoritative server, you're mostly handing out 
referrals, so you know exactly where the delegations are.  Why don't you 
have your statistics programs report what the servers actually did?

Regards,
John Levine, [e-mail], Taughannock Networks, Trumansburg NY
"I dropped the toothpaste", said Tom, crestfallenly.