How to measure response time using cURL

Create a new file, curl-format.txt, and paste in:

     time_namelookup:  %{time_namelookup}s\n
        time_connect:  %{time_connect}s\n
     time_appconnect:  %{time_appconnect}s\n
    time_pretransfer:  %{time_pretransfer}s\n
       time_redirect:  %{time_redirect}s\n
  time_starttransfer:  %{time_starttransfer}s\n
                     ----------\n
          time_total:  %{time_total}s\n

Make a request:

 curl -w "@curl-format.txt" -o /dev/null -s "http://example.com/"

To output only average time, try this:

curl -w "@curl-format.txt" -o /dev/null -s "http://example.com/" |grep time_total

the output will be something like that:

 time_total: 0.085987s

To make multiple requests, just add another url’s:

curl -w "@curl-format.txt" -o /dev/null -s "http://example.com/" "http://example.com/" "http://example.com/" "http://example.com/" |grep time_total

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