If you want to identify the configuration options for STS etc, you will need to look at HTTP Headers. From Linux you can use curl. For HTTPS sites, you may want to consider the –insecure option if you have other cert issues to contend with.

~$curl -I https://jervis.ws/
HTTP/1.1 200 OK
Date: Tue, 26 Apr 2016 20:43:16 GMT
Server: Apache
Link: ; rel="https://api.w.org/"
Content-Type: text/html; charset=UTF-8