If you issue: lynx -head -dump http://www.google.com And if the proxy server is set to add headers, you will see it, even if transparent: HTTP/1.1 302 Found Cache-Control: private Content-Type: text/html; charset=UTF-8 Location: http://www.google.com.br/?gfe_rd=cr&ei=xJy6U66VDqKk8weLnYGIAw Content-Length: 262 Date: Mon, 07 Jul 2014 13:12:36 GMT Server: GFE/2.0 Alternate-Protocol: 80:quic X-Cache: MISS from firewall.securegateway.localnet Via: 1.1 firewall.securegateway.localnet (squid/3.4.5) Connection: close 2014-07-07 9:58 GMT-03:00 Vinay C <vinayc.mails@xxxxxxxxx>: > Hi All, > > Is there any way I can detect which Proxy server (Preferably name like > Squid, Websense etc) did my http-request passes through (Either at > webserver side or at request initiating client side)? > > Thanks, > -Vinay