curl based website up function

check-website-up-down-status.sh

#!/usr/bin/zsh
RED="\033[0;31m"
GREEN="\033[0;32m"
YELLOW="\033[1;33m"
NC="\033[0m" # No Color

# Called as islive url title
function isLive() {

	if curl -Is $1 2>&1 | grep -q 'HTTP.* 200'; then
		echo $GREEN 'UP: ' "${2:-$1}"
	else
		echo $RED 'DOWN: ' "${2:-$1}"
	fi

	# curl -Is $1 2>&1 | grep -q 'HTTP.* 200' && echo $GREEN 'LIVE' $1 || echo $RED 'DOWN' $1

	# Reset terminal color
	echo $NC
}

isLive 'https://www.google.com/' 'Google'
isLive 'https://www.doesnotexistatall123456789.com/'