shell:$ nslookup -timeout=2 -retry=1 'amxrtb.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	amxrtb.com
Address: 108.156.107.4
Name:	amxrtb.com
Address: 108.156.107.122
Name:	amxrtb.com
Address: 108.156.107.81
Name:	amxrtb.com
Address: 108.156.107.50