Viewability
The measuring of an ad to make sure at least half of it appears on a device’s screen for at least two seconds. Viewability is measured by embedding code into a creative asset that fires when the ad is served and measures if, when, and how the creative has been viewed.
![](https://help.choozle.com/hubfs/Knowledge%20Base%20Import/support.choozle.comsupportsolutionsarticles13000038206-viewabilityhit.gif)