(1) Any form of Internet advertisement that is successfully served to a user’s browser. (2) Unit of measurement of Internet advertising. The total count of ad impressions denotes the number of responses from an ad delivery system to requests from user browsers, ideally recorded as late as possible in the delivery to the user’s browser in order to b [..]

The request of an advertising element as a direct result of a visitor’s action, as recorded by the advertisement server software.! An ad request does not guarantee that a visitor actually viewed an ad; it only measures the opportunity for an ad to have been delivered to the visitor.! This means that an ad request will be considered valid regardless [..]

Term used to describe the number of times an advert is seen. Advertisers usually sell space based on the exposure per thousand impressions. This is called Cost per impression (CPM). Alternatively, they might sell on a pay-per-click (CPC) basis (also known as cost-per-click - CPC)

Term used to describe the number of times an advert is seen. Advertisers usually sell space based on the exposure per thousand impressions. This is called Cost per impression (CPM). Alternatively, the [..]

A metric expressing each time an ad is served and displayed, whether it is seen or not, whether it is clicked on or not. 

The request of an advertising element as a direct result of a visitor’s action, as recorded by the advertisement server software.! An ad request does not guarantee that a visitor actually viewed an ad; it only measures the opportunity for an ad to have been delivered to the visitor.! This means that an ad request will be considered valid regardless [..]

 1) An ad which is served to a user’s browser. Ads can be requested by the user’s browser (referred to as pulled ads) or they can be pushed, such as e-mailed ads; 2) A measurement of responses from an ad delivery system to an ad request from the user's browser, which is filtered from robotic activity and is recorded at a point as late as possi [..]

(1) Any form of Internet advertisement that is successfully served to a user’s browser. (2) Unit of measurement of Internet advertising. The total count of ad impressions denotes the number of responses from an ad delivery system to requests from user browsers, ideally recorded as late as possible in the delivery to the user’s browser in order to b [..]

 A single ad placement on a page that’s available for purchase by demand partners. There is one ad impressions per ad unit per pageview.

An ad impression is reported whenever an individual ad is displayed on your website. Different ad formats will display varying numbers of ads, and can therefore result in a different number of impressions. In addition, keep in mind that the number of ads in any ad unit may vary depending on whether the ad unit is displaying standard text ads, expan [..]