shell:$ nslookup -timeout=2 -retry=1 'book.sd'
;; communications error to 75.98.161.224#53: timed out
Server:		69.39.86.5
Address:	69.39.86.5#53

Non-authoritative answer:
Name:	book.sd
Address: 104.21.85.36
Name:	book.sd
Address: 172.67.201.227
Name:	book.sd
Address: 2606:4700:3030::6815:5524
Name:	book.sd
Address: 2606:4700:3037::ac43:c9e3