To find the time response of a website using curl

To find a website response time and other statistics, use curl command in linux with following options:

curl -s -w '\n Statistics for :%{url_effective}\n Remote IP:\t\t%{remote_ip}\n Name Lookup Time:\t%{time_namelookup}\n TCP Connect Time:\t%{time_connect}\n SSL Connect Time:\t%{time_appconnect}\n Redirect Time:\t\t%{time_redirect}\n Pre-transfer Time:\t%{time_pretransfer}\n Start-transfer Time:\t%{time_starttransfer}\n Total Time:\t\t%{time_total}\n HTTP Code:\t\t%{http_code}\n' -o /dev/null https://www.amazon.com

 Statistics for :  https://www.amazon.com/
 Remote IP:               54.192.139.249
 Name Lookup Time: 0.253042
 TCP Connect Time: 0.326341
 SSL Connect Time: 0.498637
 Redirect Time: 0.000000
 Pre-transfer Time:     0.498744
 Start-transfer Time: 0.718770
 Total Time:                1.270710