shell:$ nslookup -timeout=2 -retry=1 'fltk.org'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
Name:	fltk.org
Address: 173.230.155.139
Name:	fltk.org
Address: 2600:3c01::f03c:91ff:fe9f:634b