Sunday, November 25, 2012

What does a website know about you

Every time you visit any webpage you transmit the following information to them

The following information is included in the HTTP request:

  • Your browser version
  • Your Operating system version
  • Which website you came from
  • All the cookies generated by that website

The following information gets transmitted in the TCP/IP packet that gets sent out to the webserver

  • Your WAN IP address
  • The logical port on your machine from which the request was made

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