navigator.userAgent different for each browser, what is the meaning of values in it?

D P Venkatesh Published at Dev

25

D P Venkatesh

I was very curious to know about values in result of navigator.userAgent.

I executed navigator.userAgent in chrome, FireFox and IE 8

and results I got are,

In IE8 ==> 

     "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64;
     Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR
     3.0.30729; InfoPath.2)"

In chrome ==>

     "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 
        (KHTML, like Gecko) Chrome/35.0.1916.114 Safari/537.36"

In FireFox ==>

     "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0"

Can someone please explain values in each result.

Thanks in advance..

Sajith

navigator.userAgent returns a string. See the general format for it.

userAgent = appCodeName/appVersion number (Platform; Security; OS-or-CPU; 
Localization; rv: revision-version-number) product/productSub 
Application-Name Application-Name-version

example : Mozilla/5.0 (Windows; U; Win98; en-US; rv:0.9.2) Gecko/20010725 Netscape6/6.1

Here

AppCodeName = Mozilla
AppVersion number = 5.0
Platform = Windows
Security = U ( The type of security encryption included. Possible values are U (128-bit encryption), I (40-bit encryption), and N (no encryption).)
OS-or-CPU = Win98
Localization = en-US (Indicate the language used. Here it is US-English).
Revision-version-number = 0.9.2
Product = Gecko (The Gecko rendering engine is at the heart of Firefox.)
ProductVersion = 20010725
Application-Name = Netscape6
Application-Version = 6.1

For more details see the History of the user-agent string

Collected from the Internet

Please contact [email protected] to delete if infringement.

edited at2021-03-17

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