Realizar un escaneo de puertos básico (nmap -F ssl.selectpayment.com)
Nmap scan report for ssl.selectpayment.com (52.128.104.1)
Host is up (0.030s latency).
Not shown: 99 filtered ports
PORT STATE SERVICE
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 4.16 seconds