Cost per display view (CPDV) is a metric used in digital advertising to measure the cost of each individual view of an ad on a website or app. It is calculated by dividing the total cost of the ad campaign by the number of times the ad was displayed to a user. This metric is commonly used by advertisers to determine the effectiveness and efficiency of their ad campaigns, as well as to compare the cost of different advertising channels. A lower CPDV indicates that the ad is reaching a larger audience at a lower cost, making it a desirable metric for advertisers.