User Agent Details:Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.4; en-US; rv...

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, 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.

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Common Info
HTTP USER AGENTMozilla/5.0 (Macintosh; U; Intel Mac OS X 10.4; en-US; rv:1.9.1b2pre) Gecko/20081114 Minefield/3.1b2pre
Browser branch nameMozilla 1.9
Browser nameMozilla
Browser version1.9
Operation SystemMac OS X
Browser full nameMozilla 1.9.1b2pre
EngineGecko RV: 1.9.1b2pre

Similar User Agents
User-AgentMozilla/5.0 (Macintosh; U; Intel Mac OS X 10.4; en-US; rv:1.9b5) Gecko/2008032619 Firefox/3.0b5
DescriptionMozilla Firefox 3.0 beta (Gran Paradiso) for MacOS

User-AgentMozilla/5.0 (Windows; U; Windows NT 6.0; zh-cn; rv:1.9.1b2pre) Gecko/20081102 Minefield/3.1b2pre (.NET CLR 3.5.30729)
NameMinefield 3.1
DescriptionMinefield is a codename for Mozilla Firefox 3.0s nightly trunk builds. To prevent test releases from being mistaken for a new release it has become commonplace for alpha releases to carry codenames like Deer Park or Bon Echo. Similar thinking has resulted in the nightly trunk builds (bleeding-edge test binaries that will eventually form the basis of next year's Firefox 3.0) being rebranded as Minefield.

Mozilla/5.0 (Macintosh; U; Intel Mac OS X; nl-NL; rv: Gecko/20080722
Explanation of components
MozillaMozilla -
5.0 Mozilla - Version
Macintosh Platform
USecurity type - strong security
Intel Mac OS XOperation System, CPU info:
OS X -
nl-NLLanguage Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) :
rv: CVS Branch Tag
The version of Gecko being used in the browser
For the Mozilla - browser this
Gecko Gecko engine inside
20080722 Build Date:
the date the browser was built
Additonal Info about inputed User Agent
commentMozilla 1.9
browser_makerMozilla Foundation