Show Me My Browser's Identification Information

Every Web browser sends an identification string to the Web server you are visiting. The Web server can dynamically customize Web pages based on the browser identification. This simple test page allows you to find out what is the identification string of your browser.

What is my browser's identification?

As a Web developer, or tester, you may need to know the identification string of the browser you are using, because many Web sites are using this information to dynamically customize Web pages.

A Web browser's identifications string contains the name of the browser, the version number, and other information. Here are two examples, IE and FireFox on Windows XP system:

  • Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)
  • Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20070309 Firefox/

How to find out my browser's identification?

To find out your IP address and host name, the Webmaster can use the PHP built-in array $_SERVER, which contains a lot of information including your browser's identification:

  • $_SERVER["HTTP_USER_AGENT"] - Returns your browser's identification.

This test page allows you to find out your browser's identification when you are visiting a Web server.

Click the button below to start the test:

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