input: [Cookie] Fast Track Cookie [3] [Name] No fixed name [Purpose] This cookie is used to store both the last tracking number value entered and the shipment type selected from the dropdown when using our smaller Fast Track online tracking applications. This cookie has been created to improve website functionality and make using DHL websites easier for our customers. This cookie only stores the previous tracking number value and previous shipment type dropdown option selected until such a time that you return and select new options in the same Fast Track tracking application. [More Information] 
output: You can find one of our DHL Express Fast Track tracking applications here