Glossaryadvertising terminologyweb browsing

User

glossarydefinitionuserwebsite visitorad impression

User

Also known as: website visitor, visitor

A user is the person who browses the web and, in doing so, is served advertising. In an AdTech context, the term is effectively synonymous with "website visitor" — the individual whose browser or device generates ad requests and receives ad impressions as they navigate online content.

Advertiser
Also known as: brand advertiser An advertiser is a person or company that pays to display ads to consumers across one or more media channels — including websites, apps, TV, radio, and podcasts. Advertisers sit at the…
Ad Space
Ad space is the content area within an ad slot where an advertisement is actually displayed. While the terms ad space and ad slot are often used interchangeably, they refer to distinct concepts. The ad slot is the…
Campaign
A campaign is a coordinated set of ideas or a common theme used to market a specific brand or product. In a general marketing context, it encompasses the creative concept, messaging, and channels that work together…
Ad Network
An ad network is a technology platform that acts as a broker between a group of publishers and a group of advertisers, connecting supply and demand across the digital advertising ecosystem. Traditionally, ad networks…