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Why does some sites like WhatisMyIp.com show my real IP?

Discussion in 'Proxies' started by thepresident, Nov 3, 2008.

  1. thepresident

    thepresident Registered Member

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    Why does some sites like whatismyip.c0m show my real IP even when I am behind a proxy? Does this mean sites could still get my real IP even if I am behind a proxy? Just wondering thanks....
     
  2. omfg

    omfg Newbie

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    That's what it means. The proxy will attach additional header parameters to your request, one of them is 'Via' and another one is 'X-Forwarded-For'. It will look like this:

    Via: http_protocol_number name.of.the.proxy:proxyport
    X-Forwarded-For: 123.456.789.123 <- Your IP address

    Both these header lines can be evaluated by the server you're sending the request to, just like any other http header line. It's up to the proxy what it wants to add, so it's a good idea to test them before you use them.

    Here's a site that gives a bit more information about what is sent than just your ip address:
    Code:
    http://xhaus.com/headers
     
  3. unlimitedpostings

    unlimitedpostings BANNED BANNED

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    It usually means your proxy isn't good. It should show the proxy if everything's working right.
     
  4. agj32mrgibbits

    agj32mrgibbits Registered Member

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    I always use a service like this to test and see if a proxy is anonymous if I'm not sure if it is or not.

    Code:
    http://www.samair.ru/proxy/proxychecker/
     
    • Thanks Thanks x 1
  5. apekillape

    apekillape Senior Member Premium Member

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    Online proxy checkers are garbage. Use a local one.

    N