A cookie is usually a way for a webpage to store a small amount of information on your computer that will improve your experience with that website – such as your language preference or other settings. In online advertising, cookies are often built into ads and generally contain information such as where, when and how many times you have seen an advert. This can be useful for attribution and optimisation.
Author: Justin Driskill
Justin is the founder of The Online Advertising Guide and a freelance Digital Projects Manager.