[wrs]

There are many such services, which will not only alert you but automatically try to buy the domain for you. Search for “domain backorders”.

[y-c-o-m-b]

Oh wow even GoDaddy provides the service. Interesting. Thanks!

[sixothree]

I would assume that would just give them more information for their domain broker services to raise the price of the domain.

[jfrunyon]

Sure, but so does doing a whois or an NS check. Plenty of registrars and registries are known to have abused such data in the past.

[lostlogin]

Keeping it classy as always.