Referer request-header fieldWith this page you can check whether or not your browser transmits refer(r)er (Referer is the 
dearly
The referer field was not sent.
The Referer request-header field should be either an URI reference, e.g.
http://tagsoup.com/cookbook/http/refer(r)er/or not be sent at all. So-called ‘security’ desktop software has been witnessed to send infantile gimmicks like an ‘x-ed out address’ instead, joined by an advertisement for itself. The only purpose of such programs is to generate a lot of noise; but then, if you trust any aspects of network security to software that is deliberately ignorant of network protocols, you probably just got the notorious snake-oil
