GLOSSARY vCPM (Viewable Cost Per Mille) A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Cost per thousand viewable impressions, where the ad was actually seen by the user. Back to index Related concepts VAST (Video Ad Serving Template)VendorVideo Ad Completion RateVideo AdvertisingVideo Completion Rate (VCR)Video Multiple Ad Playlist (VMAP)Video on Demand (VOD)Video Player Ad Interface Definition (VPAID)