A tag is a piece of code
..that is embedded on the web page to be used for serving and tracking ads. Tags are often provided by analytics, marketing, and support providers to help you integrate their products into your website or mobile app. Alternately, tags are used by publishers to dynamically display creatives from advertisers.
For our purposes, we’ll be discussing tags that track conversions and events. Let’s talk more about Events.
Events are content interactions that are tracked independently from a page or screen load. Downloads, gadgets, Flash elements, embedded elements, site searches and video plays are all examples of actions you might want to track as Events.