Information, data or content delivered immediately with no delay in the processing of requests, other than the time necessary for the data to travel over the Internet.
The collective name for online advertising formats that use technology to deliver interactive and audio-visual elements to give richer content and a richer experience.
The time spent between a user starting an application, computer or website and logging off or quitting.
Subscriber Identity Module - a removable part the mobile phone hardware that identifies the subscriber.
The reporting and analysis of website activity - in particular user behaviour on the site. All websites have a weblog which can be used for this purpose, but other third party software is available for a more sophisticated service.
Identifies the settings and permissions of a user’s browser to determine compatibility with ad formats and serves an advert they will be able to see/fully interact with.
Also known as a bot, robot or crawler. These are programmes used by a search engine to discover, download and index web content.
Measure used to gauge the effectiveness of a site in retaining its users. Usually measured by the duration of the visit.
Compressed audio/video which plays and downloads at the same time. The user does not have to wait for the whole file to download before it starts playing.
A form of rich media advertising which allows a TV-like experience on the web. It is fully pre-cached before playing. See also Rich Media, Cache.
Unique visitors refers to the number of distinct individuals requesting pages from a website during a given period, regardless of how often they visit. Visits refer to the number of times a site is visited, no matter how many visitors make up those visits.
Allows users to watch what they want, when they want. This can be either ‘pay per view’ or a free service usually funded by advertising. All major broadcasters offer VOD such on platforms such as 40D or BBC iplayer.
An agency branch trading entity known as the expert operators in their use of new technology. These entities can be independent or operate within an agency holding company. This group of people (known as traders) play the day-to-day campaign management role. Used by agency holding companies, operating agencies and advertisers.