I've had to add a Captcha field to the NSLookup. Sorry about that It appears that some n00b out there is passing around the NSLookup tool on this site, and several automated queries are being passed through here. I don't know what they are using the queries for, maybe for domaining, uptime checking, whatever. Requests to the owners of the IP addresses have gone unheeded, so the IP address(es) in question have been blocked, as well as implementing the humanoid check on the tool page. Sorry about that. PS - If you are the individual responsible, why not ask before banging on my web server ? I may have a different, better solution for you, if you clue me in as to what this is about.