Re: Getting hold of serial numbers

In article <cpqprj$29cb$1@sf1.isc.org>,
Barry Margolin <barmar@alum.mit.edu> wrote:

> Why do people keep saying this? The delegations in the GTLD servers
> come from the registries, and the registrars provide WHOIS servers that
> work off the same data that they send to the registry.

Because not all registrars properly update their WHOIS listing when they
change the delegation for a domain. Ideally the data in WHOIS should
always be the same as what is in the TLD servers, but in reality there
are many cases where this fails.

> If you ever see a difference between WHOIS and a delegation, it's either
> because you caught it during a change window (the WHOIS database has
> updated, but the changes haven't propagated to the GTLD servers) or
> something is broken in the process of feeding data from registrar to
> registry to DNS.

Yes, and that condition is far more common than one would hope.

--
J. Long