shell:$ nslookup -timeout=2 -retry=1 'libcal.ssf.net'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	libcal.ssf.net
Address: 172.66.165.159
Name:	libcal.ssf.net
Address: 104.20.39.239
Name:	libcal.ssf.net
Address: 2606:4700:10::ac42:a59f
Name:	libcal.ssf.net
Address: 2606:4700:10::6814:27ef