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

Non-authoritative answer:
Name:	ping.chartbeat.net
Address: 13.223.121.152
Name:	ping.chartbeat.net
Address: 18.208.237.182
Name:	ping.chartbeat.net
Address: 18.209.131.31
Name:	ping.chartbeat.net
Address: 107.22.161.66
Name:	ping.chartbeat.net
Address: 3.222.175.239
Name:	ping.chartbeat.net
Address: 54.87.242.25
Name:	ping.chartbeat.net
Address: 44.215.144.162
Name:	ping.chartbeat.net
Address: 3.231.23.73