1. A method of scanning data associated with a network computer facility comprising: receiving a request for network content from a content requesting computing facility; performing a source lookup associated with the request for network content, wherein the source lookup is from a networked source lookup database; retrieving the requested network content; calculating a checksum of at least a portion of the retrieved network content; performing a checksum lookup associated with the at least the portion of the retrieved network content, wherein the checksum lookup is from a networked checksum lookup database; and taking an action based on at least one of the source lookup and checksum lookup, wherein the action is associated with protecting the content requesting computing facility from malware.