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User Agent Details:(compatible; MSIE 4.01; MSN 2.5; AOL 4.0; Windows 98)

On this page you can find user agent lookup and user agent checker for custom user agent, just need to paste it to input field. It's showing you user agent browser, user agent data, browser branch, name, full name and many-many others. All data user agent details that you can see here fetched on server side (without JavaScript). The full version also detects most spiders, and an assortment of uncommon browsers and other user agents. User agent detail fetch based on analysis user agent string, that you giving us, and some knowledge base thta helping to know some options like "activexcontrols", "css version".
HTTP USER AGENT - it's your user agent from request.
Browser branch name - it's common name if browser (for example for all versions of Firefox 2 (2.0.102, 2.0.104) it will be Firefox 2.0
Browser full name - version on full browser name (example Mozilla/Firefox 2.0.0.19), looking like in http user agent info
ProductSub - biggest part of cases it's date of browser update, in case of Linux and Firefox - can be like "20081216".
Additonal Info section - information about supporting technologies by browser (cookie,iframe, and other), information taken not from header - it's taken from our base.
This tool is very simple, just paste useragent to input field and push "Go" for user agent tool.
We have several libs with already parsed user agents, and it's help to explain string during lookup. Thats why result can have different length and with different fields set. The blocks that can be avaible: 1-3 blocks exactly after "Common Info" block, and 1-3 blocks of "Similar" results.
User agent sniffing refers to the practice of websites showing different content when viewed with a certain user agent. On the Internet, this will result in a different site being shown when browsing the page with a specific browser.

new window:
HTTP USER AGENT

Common Info
HTTP USER AGENT(compatible; MSIE 4.01; MSN 2.5; AOL 4.0; Windows 98)
Browser branch nameFake IE
Browser nameFake IE
Browser version0.0
Platformunknown
Operation SystemWindows 98
Browser full nameMSIE 4.01

Similar User Agents
User-AgentMozilla/4.0 (compatible; MSIE 6.0; MSIE 5.5; Windows NT 5.1) Skampy/0.9.x [en]
DescriptionSkaffe.com directory link checker
Typecrawler,spider
Urlhttp://www.skaffe.com

User-AgentMozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; .NET CLR 1.1.4322)
NameInternet Explorer 7.0
DescriptionWindows Internet Explorer 7 (abbreviated IE7) is a web browser released by Microsoft in October 2006. Internet Explorer 7 is part of a long line of versions of Internet Explorer and was the first major update to the browser in more than 5 years. It ships as the default browser in Windows Vista and Windows Server 2008 and is offered as a replacement for Internet Explorer 6 for Windows XP and Windows Server 2003. Estimates of IE7's global market share place it between approximately 31% and 47%.
OrganizationMicrosoft
TypeBrowser
Urlhttp://www.microsoft.com/windows/products/winfamily/ie/default.mspx

Mozilla/4.0 (compatible; MSIE 6.0; MSIE 5.5; Windows 2000) Opera 7.0 [en]
NameOpera 7.0
Explanation of components
MozillaThis is Mozilla based browser
4.0 Mozilla Version
compatible Compatibility flag
Indicates that this browser is compatible with a common set of features
MSIE 6.0Opera - http://www.opera.com/ pretends to be Microsoft Internet Explorer
Version 6.0
MSIE 5.5Opera - http://www.opera.com/ pretends to be Microsoft Internet Explorer
Version 5.5
Windows 2000Operation System, CPU info:
Windows 2000 - http://www.microsoft.com/windows2000/
OperaOpera - http://www.opera.com/
7.0Browser version
enLanguage Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) :
Additonal Info about inputed User Agent
commentFake IE
browser_makerunknown
majorver0
minorver0
win32
win64
ismobiledevice
istablet
device_typeunknown
device_pointing_methodunknown