Moreover, I'm very curious to know how one even finds out such things (whether they're running on some python framework or ISP.net, etc.). I'm thinking a basic nmap scan can tell what server they're using (actually I'll try that out right now and report results in a few)
Requesting https://hillaryclinton.com
SERVER RESPONSE: HTTP/1.1 302 Moved Temporarily Content-Length: 154 Content-Type: text/html Date: Mon, 13 Apr 2015 17:07:59 GMT Location: https://www.hillaryclinton.com/ Server: nginx Connection: keep-alive Redirecting to: https://www.hillaryclinton.com/
SERVER RESPONSE: HTTP/1.1 200 OK Date: Mon, 13 Apr 2015 17:08:00 GMT Server: AmazonS3 x-amz-id-2: I7+Tzq0w7Vw6347QHmyedJZfIdyiX4nPiHvXxJw/sD89ltjuop0YG1LgCkf2fo3s x-amz-request-id: 49406508AC541A03 Cache-Control: max-age=86400 Last-Modified: Mon, 13 Apr 2015 16:36:32 GMT ETag: "112d7310ce2add1d77ec28c6ce824fe5" Content-Type: text/html Content-Length: 26723 Accept-Ranges: bytes X-Varnish: 3579276881 3567651786 Via: 1.1 varnish Age: 1837