$ HEAD -PS
http://en.wikipedia.org/
HEAD
http://en.wikipedia.org/ --> 403 Forbidden
Connection: close
Date: Sat, 21 Feb 2009 19:49:14 GMT
Via: 1.0 sq29.wikimedia.org:80 (squid/2.7.STABLE6)
Server: squid/2.7.STABLE6
Content-Length: 59481
Content-Type: text/html
Client-Date: Sat, 21 Feb 2009 19:49:14 GMT
Client-Peer: 208.80.152.2:80
Client-Response-Num: 1
X-Cache: MISS from
sq29.wikimedia.org
X-Cache-Lookup: NONE from sq29.wikimedia.org:80
X-Squid-Error: ERR_ACCESS_DENIED 0
Tried from both California and Taiwan.