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Are you curious about the user-agent that identifies the browser identity, and why each browser has the Mozilla word?
mozilla/5.0 (Windows NT 6.1; WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/27.0.1453.94 safari/537.36
mozilla/5.
What is User-agent?User-agent is a special string header that is widely used to indicate browser client information, allowing the server to identify the operating system and version of the client computer, CPU type, browser and version, browser
Using IP proxiesProxyhandler () format IP, first parameter, request target may be HTTP or HTTPS, corresponding settingBuild_opener () Initialize IPInstall_opener () Sets the proxy IP to global and automatically uses proxy IP when Urlopen () requests
Are you curious about the User-Agent that identifies the browser? Why does each browser contain Mozilla? View Source print?
1
Mozilla/5.0 (Windows NT 6.1; wow64) applewebkit/537.36 (khtml, like gecko) Chrome/27.0.1453.94 Safari/537.3
The user agent is used to indicate the identity of the browsing user, so that web developers can know the information of the access terminal. Send different display content based on different terminals. For example, the desktop and mobile versions
Defined
User Agent string: navigator.useragent
The HTTP specification specifies that the browser should send a short user agent string indicating the name and version number of the browser. But in reality it is not so simple.
Development history
The user agent string userAgent can implement four identification functions: String useragent
Definition
User proxy string: navigator. userAgent
The HTTP specification clearly stipulates that the browser should send a brief user proxy string,
In theory, access to the mobile phone version or ipad, such as tablet version of the network, should be able to leave some traffic, after all, mobile network is optimized compression, but the PC computer if access to mobile version of the site? My
This article describes knowledge about user-agent and the use of the Nginx Map directive to match the user Agent custom values with regular expressions, and there are many things you can do by capturing UA custom values, one of which is to have a
Are you curious about the User-Agent that identifies the browser? Why does each browser contain Mozilla?
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.94 Safari/537.36Mozilla/5.0 (Linux; U; Android 4.1.2;
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