shell:$ nslookup -timeout=2 -retry=1 'bookcheapflights.net'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	bookcheapflights.net
Address: 172.67.153.89
Name:	bookcheapflights.net
Address: 104.21.48.150
Name:	bookcheapflights.net
Address: 2606:4700:3031::6815:3096
Name:	bookcheapflights.net
Address: 2606:4700:3035::ac43:9959