Your system comes complete with click fraud protection technology and a dedicated traffic control team that monitors clicks and will notify you of any suspicious clicks. However, if you are suspicious about a particular traffic source, you can utilize the Site Gateway feature, where it requires the user to verify that they are human by entering in a randomly generated code. Visit the Site Gateway Report in Publisher Traffic Reports in the admin for valuable information to help you determine unusual activity, for example, the IP addresses of each visit, the display URL, the clicked URL, and so forth.
