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Online Advertising Glossary
• Hit (Page Hit)
The retrieval of any item, like a page or a graphic, from a Web server. For example, when a visitor calls up a Web page with four graphics, that's five hits, one for the page and four for the graphics. For this reason, hits often are not a good indication of Web traffic.
• Requests (Page Views)
A Web page that has been viewed by one visitor.
• Impression
An advertisement's appearance on an accessed Web page. For example, if the page you are on shows three ads, that is three impressions. Advertisers use impressions to measure the number of views their ads receive.
• Pixels
A measurement of how a monitor displays an image. The resolution of an image displayed on a monitor is determined by the number of pixels contained within one square inch of monitor space.
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