Why so many of the eferer URLs given by visitors have the same domain?
It is necessary to redirect visitors through our servers. As such, the visitors will present a HTTP_REFERRER variable that references one of our servers. Among other things, our server checks for visitors who do not properly enter our system (e.g. through a domain). As you have seen, such visitors are discarded. This helps assure that the traffic we send to your site is legitimate and properly targeted.
