title: How does a website know your ip address?
body: <p>When I visited the website <a href="http://myipaddress.com/what-is-my-ip-address/" rel="nofollow">http://myipaddress.com/what-is-my-ip-address/</a></p>
  
  <p>I checked the request header information. No where does it include my ip address. So how is the web server able to determine my ip address? I know that any web server has access to this information. But if its not there in the HTTP request, how do they get it?</p>