I would try the daytime (13/tcp) service before attempting to hit a web server. Web services are likely to be proxied.

$ telnet xxx daytime
Trying 192.168.80.3...
Connected to xxx.
Escape character is '^]'.
05 JAN 2003 11:16:39 EST
Connection closed by foreign host.
[download]

---
print map { my ($m)=1<<hex($_)&11?' ':'';
$m.=substr('AHJPacehklnorstu',hex($_),1) }
split //,'2fde0abe76c36c914586c';
[download]