shell:$ nslookup -timeout=2 -retry=1 'signal.org'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	signal.org
Address: 104.18.11.47
Name:	signal.org
Address: 104.18.10.47
Name:	signal.org
Address: 2606:4700::6812:b2f
Name:	signal.org
Address: 2606:4700::6812:a2f