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What information can we access from the client? [closed]

I’m trying to compile a list of information that is accessible via javascript such as:

  • Geo-location
  • IP address
  • Browser software
  • Exit location
  • Entrance location

I understand that a user can alter any of this information and that it’s reliability is purely trust related, but I am still interested in what other information can be mined from the client.



Don’t forget about

  • Screen Size
  • Allowed Cookies
  • Allowed Java
  • Mobile or Desktop
  • Language

And here is useful link with data-mining demo:

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