curl -s -w @stats.curl -o /dev/null https://www.google.fr 

Avec le fichier stats.curl contenant :

url_effective     :  %{url_effective}\n
content_type      :  %{content_type}\n
filename_effective:  %{filename_effective}\n
ftp_entry_path    :  %{ftp_entry_path}\n
http_code     :  %{http_code}\n
http_connect      :  %{http_connect}\n
http_version      :  %{http_version}\n
local_ip      :  %{local_ip}\n
local_port    :  %{local_port}\n
remote_ip     :  %{remote_ip}\n
remote_port   :  %{remote_port}\n
scheme        :  %{scheme}\n
num_connects      :  %{num_connects}\n
num_redirects     :  %{num_redirects}\n
redirect_url      :  %{redirect_url}\n
size_download     :  %{size_download}\n
size_header   :  %{size_header}\n
size_request      :  %{size_request}\n
size_upload   :  %{size_upload}\n
ssl_verify_result :  %{ssl_verify_result}\n
time_namelookup   :  %{time_namelookup}\n
time_connect      :  %{time_connect}\n
time_appconnect   :  %{time_appconnect}\n
time_pretransfer  :  %{time_pretransfer}\n
time_redirect     :  %{time_redirect}\n
time_starttransfer:  %{time_starttransfer}\n
time_total    :  %{time_total}\n
speed_download    :  %{speed_download}\n
speed_upload      :  %{speed_upload}\n

Sortie :

url_effective     :  https://www.google.fr/
content_type      :  text/html; charset=ISO-8859-1
filename_effective:  /dev/null
ftp_entry_path    :  
http_code     :  200
http_connect      :  000
http_version      :  2
local_ip      :  192.168.0.11
local_port    :  55914
remote_ip     :  216.58.198.195
remote_port   :  443
scheme        :  HTTPS
num_connects      :  1
num_redirects     :  0
redirect_url      :  
size_download     :  10872
size_header   :  657
size_request      :  77
size_upload   :  0
ssl_verify_result :  0
time_namelookup   :  0,013082
time_connect      :  0,021836
time_appconnect   :  0,064367
time_pretransfer  :  0,064677
time_redirect     :  0,000000
time_starttransfer:  0,116259
time_total    :  0,118019
speed_download    :  92120,000
speed_upload      :  0,000