About the User-Agent String

The User-Agent (or UA) string is sent along in the headers of every HTTP request so the server knows what type of browser is making the request. For a quick refresher on the User-Agent string, check out George Shephard's article in MSDN Magazine. Two MSDN articles describe User-Agent headers: Understanding User-Agent Strings, and Best Practices for detecting the Internet Explorer version.

Want Internet Explorer to simulate another version? 

Otherwise, run one of the following scripts and restart all browser instances to see the change:

• Internet Explorer 6 on WindowsXP (use this to workaround sites that block IE7 or Windows Vista)
• Internet Explorer 7 on your current OS
• Internet Explorer 7 on Vista
• Internet Explorer 8 on your current OS
• Undo User-Agent registry overrides

Cache-Control: no-cache
Connection: close
Pragma: no-cache
Accept: Accept: application/xhtml+xml,text/html;q=0.9,text/plain;
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Accept-Encoding: gzip
Accept-Language: en-us,en;q=0.5
Host: enhanceie.com
User-Agent: CCBot/1.0 (+http://www.commoncrawl.org/bot.html)

Type = Unknown
Name = Unknown
Version = 0.0
Major Version = 0
Minor Version = 0
Platform = Unknown
Is Beta = False
Is Crawler = False
Is AOL = False
Is Win16 = False
Is Win32 = False
Supports Frames = False
Supports Tables = False
Supports Cookies = True
Supports VBScript = False
Supports JavaScript = False
Supports Java Applets = False
Supports ActiveX Controls = False