Actual proxy judges list. Proxy judges 2021
https://www.proxy-listen.de/azenv.php
http://www.wfuchs.de/azenv.php
http://pascal.hoez.free.fr/azenv.php
http://www.luisaranguren.com/azenv.php
http://www2t.biglobe.ne.jp/~take52/test/env.cgi
http://www3.wind.ne.jp/hassii/env.cgi
http://www3.wind.ne.jp/hassii/env.cgi
http://eco.cutepia.net/env.cgi
http://ln.to/env.cgi
http://www.knowops.com/cgi-bin/textenv.pl
http://scripts.mit.edu/~jbarnold/demo/env.pl
http://www.dynalt.com/cgi-bin/test_env.pl
https://www.mitchfincher.com/tips/web/envs.pl