Performing a basic port scan (nmap -F aviva.co.jp)
Nmap scan report for aviva.co.jp (13.112.102.65)
Host is up (0.10s latency).
Other addresses for aviva.co.jp (not scanned): 18.176.220.202
rDNS record for 13.112.102.65: ec2-13-112-102-65.ap-northeast-1.compute.amazonaws.com
Not shown: 98 filtered tcp ports (no-response)
PORT STATE SERVICE
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 3.33 seconds