Run a ttfb command with the option of how many time you want the command to run.

TTFB+LoopOption

function ttfb {
if [[ -z ${maxcount} ]];
then
        maxcount=10
fi

if [[ -n ${domain} ]];
then
        echo -e "\n\nTTFB measured "${maxcount}" times with 1s intervals:"
        br="++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
        echo -e ${br}"\n Testing: ${domain}\n"
        for ((c=1; c<=${maxcount}; c++));
        do
                echo ${c} - $(curl -o /dev/null -w "Connect: %{time_connect} TTFB: %{time_starttransfer} Total time: %{time_total} \n" --silent --output /dev/null ${domain});
                sleep 1
        done
        echo ${br};
        else
        echo -e "\nUsage: ttfb <domain_name>.\n\n"
return 0
fi
}
domain=${1}
maxcount=${2}
ttfb