GLOSSARY Cost per mille viewable impressions (vCPM) 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 impressions where the ad was effectively viewable according to viewability standards. Back to index Related concepts Cache BustingCall to Action (CTA)Campaign ManagementClean RoomClean Room AnalyticsClick FraudClick-through ConversionClick-through Rate (CTR)