$ curl -v https://twitter.com [..ssl handshake and request..] < HTTP/1.1 200 OK < content-type: text/html;charset=utf-8 < date: Fri, 01 Nov 2013 11:12:31 GMT * Server tfe is not blacklisted < server: tfe [..body..]
[1] http://trends.builtwith.com/websitelist/Google-Web-Server
[1] http://trends.builtwith.com/websitelist/Google-Web-Server