bookmarking http://validator.w3.org/chec

I have added the code on my web page to link through to   
http://validator.w3.org/check/referer.

At the bottom of your results page it claims:

"(Or, you can just add the current page to your bookmarks or hotlist.)"

A bookmark to that page will not work properly, since the referer will   
not be passed to your web server.