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What is my User-Agent?

Your User-Agent is

What is an "User-Agent:" HTTP header?

User-Agent is a HTTP header code string that sends some software information to the website linked by a web browser. The information sent includes information such as "Operating system, how many bits, browser name, browser version and browser platform". With this information, website owners can be used to make the website's software and design compatible with the browser and to improve it.

Browser User-Agent headers are vital to the user experience. While modern browsers are highly compatible for general web applications today, some specialized software is only supported by some browsers. To ensure this compatibility, webmasters receive these special codes from the HTTP header information and provide compatibility between the server and the client according to the application and system information.

Sample Browser Headers

User-agent:Detail
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.122 Safari/537.36 Google Chrome 80 on Windows 10 64 bit Desktop
Mozilla/5.0 (Linux; Android 7.1.2; AFTMM Build/NS6265; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.110 Mobile Safari/537.36 Google Chrome 70 on Android Linux 34 bit Mobile
Mozilla/5.0 (iPhone; CPU iPhone OS 12_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 Safari on IOS 12 64 bit Iphone Mobile
Mozilla/5.0 (X11; U; Linux i686; pt-BR; rv:1.9.0.15) Gecko/2009102815 Ubuntu/9.04 (jaunty) Firefox/3.0.15 Firefox 3 on Ubuntu 9 32 bit Desktop
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/11.1.2 Safari/605.1.15 Safari 11.1 on Mac OS X 64 bit Macintosh Desktop
Your User-Agent: CCBot/2.0 (https://commoncrawl.org/faq/)