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

Non-authoritative answer:
Name:	portalelectricidad.es
Address: 178.33.114.152
Name:	portalelectricidad.es
Address: 2001:41d0:260:700::