Shulou(Shulou.com)06/03 Report--

In this issue, the editor will bring you about what the desktop ua is. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

Desktop UA is desktop user agent, referred to as UA (User Agent); its function is to enable the server to identify the operating system and version used by the customer, CPU type, browser and version, browser rendering engine, browser language, browser plug-in and so on.

Some websites often send different pages to different operating systems and different browsers by judging UA, so some pages may not be displayed properly in a browser, but detection can be bypassed by camouflage UA.

Because many websites ignore the two-digit version number when doing UA detection, it may cause the browser and later versions to receive bad pages, so the browser identification entry is fixed as the browser since browser 10, and the real version information is added at the end of the UA string.

Extended data

User-agent string format:

Google Chrome browsers use WebKit as the rendering engine, while the JavaScript engine uses another. The original release was 0.2, and its user-agent string format was added to the webKit message as follows:

An example of Mozilla/5.0 (Platform; Encryption; OS-or-CPU; Language) AppleWebKit/AppleWebKitVersion (KHTML, like Gecko) Chrome/ChromeVersion Safari/SafariVersionChrome 0.2 user-agent information is as follows:

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/525.13 (KHTML, like Gecko) Chrome/0.2.149.29 Safari/525.13, although I am not entirely sure, it is very likely that the WebKit version and the Safari version will always be in sync.

The above is what the desktop ua shared by the editor is. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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