shell:$ nslookup -timeout=2 -retry=1 'backbone.casolution.de'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	backbone.casolution.de
Address: 172.67.192.145
Name:	backbone.casolution.de
Address: 104.21.36.104
Name:	backbone.casolution.de
Address: 2606:4700:3037::6815:2468
Name:	backbone.casolution.de
Address: 2606:4700:3037::ac43:c091