Nmap scan report for cisco.com (72.163.4.185)
Host is up (0.035s latency).
Other addresses for cisco.com (not scanned): 2001:420:1101:1::185
rDNS record for 72.163.4.185: redirect-ns.cisco.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 3.88 seconds