Nmap scan report for mathxl.com (52.20.239.0)
Host is up (0.068s latency).
Other addresses for mathxl.com (not scanned): 44.214.56.196 35.172.249.85
rDNS record for 52.20.239.0: ec2-52-20-239-0.compute-1.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 2.87 seconds