Check Time to First Byte for a list of sites

ttfb.sh

#!/bin/bash
# file: ttfb.sh
# check the TTFB for a list of sites

# add list of sites here
declare -a sites=() 

# test results will be output here
rm -rf $HOME/Desktop/TTFB-`date +"%m-%d-%Y"`.csv
echo "TTFB Test on: `date +"%m-%d-%Y %H:%M"`\n URL, Connect, TTFB, Total Time" | cat >> $HOME/Desktop/TTFB-`date +"%m-%d-%Y"`.csv

# status
echo "Running TTFB test for: "

# loop over sites and output each TTFB result to CSV
for i in "${!sites[@]}"
do
  printf "\r"
  tput el
  printf "${sites[$i]}..."
  curl -w '%{url_effective},%{time_connect},%{time_starttransfer},%{time_total}\n' -o /dev/null -s ${sites[$i]} | cat >> $HOME/Desktop/2060-TTFB-`date +"%m-%d-%Y"`.csv
  printf "Finished."
  sleep .1
done

# clean up and say we're done
printf "\r" 
tput el
tput cuu 1
tput el
echo "TTFB Test Completed "