Sqreen

The Sqreen allows you to tap into its extensive knowledgebase to discover security risks hiding in your own data. Find out whether that email address is from an anonymizing service, or that IP address is a Tor exit point (Tor Exit Nodes are the gateways where encrypted Tor traffic hits the Internet. This means an exit node can be abused to monitor Tor traffic) . You can even find out if the address has been implicated in a past security attack.