Nmap scan report for youtube.com (74.125.137.91)
Host is up (0.0058s latency).
Other addresses for youtube.com (not scanned): 2607:f8b0:4023:c03::5b 2607:f8b0:4023:c03::be 2607:f8b0:4023:c03::5d 2607:f8b0:4023:c03::88 74.125.137.136 74.125.137.190 74.125.137.93
rDNS record for 74.125.137.91: dy-in-f91.1e100.net
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 2.02 seconds