User-Agent - HTTP | MDN - MDN Web Docs
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/User-Agent
OverviewSyntaxFirefox UA stringChrome UA stringOpera UA stringMicrosoft Edge UA stringSafari UA stringFor more on Firefox- and Gecko-based user agent strings, see the Firefox user agent string refe…1.Mozilla/5.0 is the general token that says that the browser is Mozilla-compatible. For historical reasons, almost every browser today sends it.2.platform describes the native platform that the browser is running on (Windows, Mac, Linux, A…3.rv:geckoversion indicates the release version of Gecko (such as "17.0"). In recent browsers, geckoversion is the same as firefoxversion.See more on developer.mozilla.org 2.platform describes the native platform that the browser is running on (Windows, Mac, Linux, A…3.rv:geckoversion indicates the release version of Gecko (such as "17.0"). In recent browsers, geckoversion is the same as firefoxversion.
2.platform describes the native platform that the browser is running on (Windows, Mac, Linux, A…3.rv:geckoversion indicates the release version of Gecko (such as "17.0"). In recent browsers, geckoversion is the same as firefoxversion.
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