Nmap scan report for youtube.com (172.217.23.78)
Host is up (0.071s latency).
Other addresses for youtube.com (not scanned): 2a00:1450:4002:405::200e
rDNS record for 172.217.23.78: mil04s22-in-f78.1e100.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 3.15 seconds