curl command to check the time to first byte

ttfb.sh

#!/bin/bash
# file: ttfb.sh
# curl command to check the time to first byte
# ** usage **
# 1. ./ttfb.sh "https://google.com"
# 2. seq 10 | xargs -Iz ./ttfb.sh "https://google.com"

curl -o /dev/null \
     -H 'Cache-Control: no-cache' \
     -s \
     -w "Connect: %{time_connect} TTFB: %{time_starttransfer} Total time: %{time_total} \n" \
     $1

Thanks!

Thanks

If somebody needs it:

seq 50 | xargs -Iz ./ttfb.sh "url" | awk '{sum+=$NF; count++} END {print "Sum of Total time:", sum; print "Average Total time:", sum/count}'

outputs the average total time like this:

Sum of Total time: 8.07832
Average Total time: 0.161566

@dunklesToast with my fork you can run ttfb -n 50 example.com/example/url