Does anyone know of a tool that allows you to look up a server and see which sites have that listed as their primary server?

It seems like it should be available because it is easy to look up a site to see their DNS information, but I want to be able to go the other way: look up the server and see which sites are on it.

http://www.betterwhois.com/

www.domainwhitepages.com

Hi,

I believe you are after:

http://www.ipdetective.com/ (appears to be down atm).