Re: [sitefinder-tech-discuss] A technical question

[Andrew Newton <anewton@verisignlabs.com>]

Kee Hinckley wrote:


> > Those two statements are contradictory.  On the one hand you are 
> > telling me that my code which use to use DNS now should use your WHOIS 
> > system.  In the other you are telling me that my code isn't allowed to 
> > use the WHOIS system (it's automated, high-volume, and doesn't have to 
> > do with domain registration).
> >
> > Which statement is accurate, and if the answer is the second--then 
> > please correct the first and tell me what I *am* supposed to use.

Kee,

Sorry about that.  The statements do appear to contradict each other.

One method for conducting this check would be to compare the result of a 
query for the wildcard (e.g. *.com) to the result of your domain lookup. 
 With caching, this should be efficient.

I have also used an NS query in some of my scripts, though I advise more 
care in using this method as a full resolver may be too helpful with 
some of the answers.

-andy