Simple à installer :

pip3 install httpstat

Puis : httpstat www.eckmul.net et maintenant on sait ce qui cloche sur les temps de réponses d'un site web.

HTTP/1.1 200 OK
Date: Thu, 23 Mar 2017 14:26:21 GMT
Server: Apache
Last-Modified: Thu, 23 Mar 2017 14:24:59 GMT
ETag: "32fa-54b66a45258f3"
Accept-Ranges: bytes
Content-Length: 13050
Vary: Accept-Encoding
Cache-Control: max-age=2592000
Expires: Sat, 22 Apr 2017 14:26:21 GMT
Content-Type: text/html

Body stored in: /tmp/tmpK7zmDI

  DNS Lookup   TCP Connection   Server Processing   Content Transfer
[    12ms    |       7ms      |        9ms        |        1ms       ]
             |                |                   |                  |
    namelookup:12ms           |                   |                  |
                        connect:19ms              |                  |
                                      starttransfer:28ms             |
                                                                 total:29ms