I have kicked off a new free service on my site - check it out here. When testing the security of an organisation during a vulnerability assessment, it is usual practice to build up a footprint of the points of possible attack. This domain profiler service is an attempt to do that in an automated way. It checks dns, hostnames, whois, shodan and virtual hosts that are associated with a domain name. Using the report you are then able to see what an attacker might see if they were coming after you - additional security vulnerability testing can then take place using other online tools such as port scanning, vulnerability scans and web application testing. http://hackertarget.com/2010/09/domain-profiler-launched/