A method of assessing the legitimacy of a subject pharmacy website includes the steps of, from a network-enabled computing device, generating a prediction model comprising a list of pharmacy websites of known legitimacy and a first set of websites which contain at least one referring link to at least one of the list of pharmacy websites of known legitimacy, from the network-enabled computing device, collecting a second set of websites which contain at least one referring link to a subject pharmacy website whose legitimacy is unknown, isolating a subset of websites from the second set of websites based on the prediction model, comparing the subset of websites to the first set of websites linked to the list of pharmacy websites whose legitimacy is known, and determining the legitimacy of the subject pharmacy website based on the comparison to the first set of known legitimate pharmacy websites.