shell:$ nslookup -timeout=2 -retry=1 'www.boerse-frankfurt.de'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
www.boerse-frankfurt.de	canonical name = bfw-frontend-prod.ariva-services.de.
bfw-frontend-prod.ariva-services.de	canonical name = bfw-prod.ariva-services.de.
Name:	bfw-prod.ariva-services.de
Address: 82.97.136.101