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

Non-authoritative answer:
Name:	postfinance.ch
Address: 194.41.166.21
Name:	postfinance.ch
Address: 2a00:17c9:0:103::205