Session Pixel Tracker pagead/landing Google Inc. Collects data on visitor behaviour from multiple websites, in order to present more relevant advertisement - This also allows the website to limit the number of times that they are shown the same advertisement. Session Pixel Tracker test_cookie Google Used to check if the user's browser supports cookies. 1 day HTTP Cookie tr Facebook Used by Facebook to deliver a series of advertisement products such as real time bidding from third party advertisers.