For digital ads to make an impact, they have to be seen. Not just served. However, nearly half of all digital ads are not viewable. Make sure your ads have the opportunity to be seen by real people — wherever they are. That includes across screens and devices, using both display and video ads. And as digital advertising becomes more sophisticated, media buyers and sellers want to not only prove their ability to drive results, but they also want to transact on viewability — making it a customisable currency.