CODEWITHSUNDEEP
javascript
stkvtflw
stkvtflw

Reputation: 13507

What information could be gathered by Javascript within browser?

I'm familiar with Navigator object, but is there more ways to gather more data about user? OS, extensions, cookie or other in-browser settings - everything i can use to replicate client-side errors.

I know about bunch of analytics services out there, but right now i'm curious, what data could be gathered with vanilla javascript and minimal efforts.

Thank you!

Upvotes: 0

Views: 843

Answers (2)

Suren Srapyan
Suren Srapyan

Reputation: 68655

When you will do

console.log(navigator);

You will see.In which there is also the OS version (oscpu) only for Firefox. These are the properties in the navigator object.

platform = Win32
appCodeName = Mozilla
appName = Netscape
appVersion = 5.0 (Windows; en-US)
language = en-US
mimeTypes = [object MimeTypeArray]
oscpu = Windows NT 5.1
vendor = Firefox
vendorSub = 1.0.7
product = Gecko
productSub = 20050915
plugins = [object PluginArray]
securityPolicy =
userAgent = Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7
cookieEnabled = true
javaEnabled = function javaEnabled() { [native code] }
taintEnabled = function taintEnabled() { [native code] }
preference = function preference() { [native code] }

OSCPU

enter image description here

Upvotes: 1

Adrian Brand
Adrian Brand

Reputation: 21638

The main information come from the user agent string for browser version and OS but it is not guaranteed to be truthful and can be easily hacked and some browsers lie about themselves. You can also get information about the screen size and resolution.

Upvotes: 0

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