This testing page was written to demonstrate what your browser sends, and what a receiving page will read, for the HTTP_REFERER.
Choose to test at a different domain name:
http://fingerlakesbmw.org/test/fltest.php
..or at a similar testing page within this domain:
http://tekrider.net/general/tektest.php
Naturally, you will only see an HTTP_REFERER result if you have not disabled it in your browser. After viewing the results, use your Back button to return to this page.
The PHP code used for this display is:
$referer = $_SERVER['HTTP_REFERER'];
And yes, the person who 'invented' this protocol way back when, misspelled the word "REFERRER".