Managing banner ad clickthroughs

Another problem that frequently skews the statistics is HTTP HEAD requests. Obviously these aren't done by humans, so we wanted to ignore them too, and only count the GET requests that all browsers make to ask the server for data.

The code below shows how this was done:

// ignore any HTTP HEAD requests - they're not from a browser!
if ( 'GET' != Request.ServerVariables ( 'REQUEST_METHOD' ) )
{
    // not a human, so ignore them
    bIgnoreClick = true;
}