Testing your load balancer servers for downtime, ignores SSL errors assuming you're testing the core of your web service

test.sh

#!/usr/bin/env sh

host="www.example.com"
ips=(
    93.184.216.34
)

for ip in "${ips[@]}"; do
    curl -H "Host: $host" "https://$ip/" -kIs |grep 200\ OK >/dev/null && (
        echo "\033[0;32m[✓] $ip\t(passed)"
    ) || (
        echo "\033[0;31m[×] $ip\t(failed)"
    )
done