shell:$ nslookup -timeout=2 -retry=1 'www.universitas.telefonica.es'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
www.universitas.telefonica.es	canonical name = www.universitas.telefonica.es.cdn.cloudflare.net.
Name:	www.universitas.telefonica.es.cdn.cloudflare.net
Address: 141.101.90.98
Name:	www.universitas.telefonica.es.cdn.cloudflare.net
Address: 141.101.90.96
Name:	www.universitas.telefonica.es.cdn.cloudflare.net
Address: 141.101.90.99
Name:	www.universitas.telefonica.es.cdn.cloudflare.net
Address: 141.101.90.97
Name:	www.universitas.telefonica.es.cdn.cloudflare.net
Address: 2a06:98c1:3200::90:0
Name:	www.universitas.telefonica.es.cdn.cloudflare.net
Address: 2a06:98c1:3200::90:3
Name:	www.universitas.telefonica.es.cdn.cloudflare.net
Address: 2a06:98c1:3200::90:1
Name:	www.universitas.telefonica.es.cdn.cloudflare.net
Address: 2a06:98c1:3200::90:2