Number of times an ad banner is downloaded and presumably seen by visitors. If the same ad appears on multiple pages simultaneously, this statistic may understate the number of ad impressions, due to browser caching. Corresponds to net impressions in traditional media. There is currently no way of knowing if an ad was actually loaded. Most servers [..]

Number of times an ad banner is downloaded and presumably seen by visitors. If the same ad appears on multiple pages simultaneously‚ this statistic may understate the number of ad impressions‚ due to [..]

The number of times a specific ad has been displayed. Many ad networks sell advertising using a CPM model, in which ads are purchased and web publishers reimbursed at a fixed rate per thousand impressions.

the number of times an advertisement is shown.