/check/referer validation broken?

Hello

links like

<a href="http://validator.w3.org/check/referer">

used to immediately validate the referring page.

Now (it seems to have changed on/about 25/Oct) instead
they refer to http://validator.w3.org/  where the
original page validates only if you supply the
URI for it (by typing it).

as a workaround, links like
<a href="http://validator.w3.org/check?uri=http%3A%2F%2Fmydom%2Fmyuri.html">

do immediately validate the referring page (the way /check/referer
did), but are a hassle to maintain.

Am I missing something here?

What is the correct way to specify a link to validate the
referring page (without explicitly naming that page)?

TIA

-ns