Discover real IP behind Cloudflare network

crimeflare.sh

#!/bin/bash

function banner {
    echo ' _____      _               ______ _                  _____  _     _____ '
    echo '/  __ \    (_)              |  ___| |                /  __ \| |   |_   _|'
    echo '| /  \/_ __ _ _ __ ___   ___| |_  | | __ _ _ __ ___  | /  \/| |     | |  '
    echo "| |   | '__| | '_ \` _ \ / _ \  _| | |/ _\` | '__/ _ \\ | |    | |     | |  "
    echo '| \__/\ |  | | | | | | |  __/ |   | | (_| | | |  __/ | \__/\| |_____| |_ '
    echo ' \____/_|  |_|_| |_| |_|\___\_|   |_|\__,_|_|  \___|  \____/\_____/\___/ '
    echo 
    echo "CrimeFlare CLI identifies real IP hosted behind Cloudflare."
    echo "Github: https://www.github.com/xlbruce"
    echo
}

function usage {
    echo "Usage: bash $0 <domain>";
    echo "Example: bash $0 exampledomain.com";
}

function log {
    echo "[+] $@";
}

banner;
host="$1"

if [ -z "$host" ]; then
    usage;
    exit 1;
fi

response=$(curl -s -XPOST http://www.crimeflare.org:82/cgi-bin/cfsearch.cgi -d "cfS=$host");
real_ip=$(echo "$response" | grep -m1 -o '\d\{1,3\}\.\d\{1,3\}\.\d\{1,3\}\.\d\{1,3\}');

if [ -z "$real_ip" ]; then
    echo "IP address not found. Maybe the host $host is not at Cloudflare.";
    exit 1;
fi

log "Information found for host $host";
curl -sL "http://ipinfo.io/$real_ip/json";