If you are have a dynamic website, you can grab the "Referer" header of each request and put it in a database. If you have a static website, you can make a sma

If you are have a dynamic website, you can grab the "Referer" header of each request and put it in a database. If you have a static website, you can make a small script and parse the server logs. Another way to get the header data is to use javascript and send the referer data to a server with an ajax call.