shell:$ nslookup -timeout=2 -retry=1 '0.gravatar.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	0.gravatar.com
Address: 192.0.73.2
Name:	0.gravatar.com
Address: 2a04:fa87:fffe::c000:4902