This is done to trick attack sites that might display clean content to the scanner, but not to the browser. Certain anti-virus products fake their user-agent to appear to be popular browsers.A user who revisits a site shortly after changing or upgrading browsers may be double-counted under some methodologies overall numbers at the time of a new version's release may be skewed.Link prefetching in Gecko-based browsers is used on pages with enhanced markup, including Google search results. Gecko-based browsers (such as Firefox) can prefetch linked web pages, potentially increasing hits.Extra files like CSS hacks and JavaScript hacks are often sent to Internet Explorer.A feed reader that requests the RSS or Atom feed at a regular time interval.A web browser that refreshes the webpage at a regular time interval.In this case the user's activity might be overestimated. Not all requests are generated by a user, as a user agent can make requests at regular time intervals without user input. It can be misleading to measure the browser usage in the number of requests (page hits) made by each user agent. Some web browsers, such as Internet Explorer have very low usage share (even though very popular before), since it's being replaced, in part because of poor security track record.Īccuracy issues For example, when it is said that Google Chrome has 64% usage share (May 2022), it means that all versions of Chrome (including the related Chromium) are used by 64 of every 100 visitors who visit a given set of websites. The usage share of web browsers is the percentage (%) of viewers at a group of websites who use a particular web browser. ( May 2018) An editor's reason for this is: words like "methodologies, retroactively, erroneous". You can help Wikipedia by reading Wikipedia:How to write Simple English pages, then simplifying the article. The English used in this article or section may not be easy for everybody to understand.
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