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This article aims to be an unbiased historical record for the usage share of web browsers (but ideally layout engines, as it is what matters), based on statistics and articles published by well-known websites. One of the uses of such statistics is to create a graph that roughly represents the browser wars. This also serves as a reference for the various web browser articles. This article is not all-inclusive or necessarily up-to-date. While the record was achieved unbiased, the record itself may not totally reflect the fact (i.e., there may be certain degrees of overestimation and underestimation). It also does not account for the regional differences in market share. In general Usage share, in web browser statistics, is the percentage of visitors to a group of web sites that use a particular browser. For example, when it is said that Internet Explorer has 85% usage share, it means that Internet Explorer is used by 85% of visitors that visit a given set of sites. Typically, the user agent string is used to identify which browser a visitor is using. Overestimation and underestimation Note that measuring browser usage in terms of the number of requests (page hits) made by each user agent can be misleading. Not all requests are generated by a user, as a user agent can make requests at regular time intervals without user input. In this case, the usage of that user agent would then be overestimated. Some examples: It is also possible to underestimate the usage share, for example: These problems could be avoided by using measures in terms of unique visitors to web sites rather than page hits. This can be achieved by using IP address and cookies. However, many web statistics software that only gathers data from the web server logs does not provide this kind of measurement. GVU WWW User Survey Dataquest International Data Corporation ZD Market Intelligence Zona Research AdKnowledge WebSideStory TheCounter.com OneStat.com ADTECH Net Applications See also | |||||||
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