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

Non-authoritative answer:
Name:	my.rtmark.net
Address: 172.64.146.234
Name:	my.rtmark.net
Address: 104.18.41.22
Name:	my.rtmark.net
Address: 2a06:98c1:3103::ac40:92ea
Name:	my.rtmark.net
Address: 2606:4700:4405::6812:2916