shell:$ nslookup -timeout=2 -retry=1 'www.ensia.edu.dz'
;; communications error to 75.98.161.224#53: timed out
Server:		69.39.86.5
Address:	69.39.86.5#53

Non-authoritative answer:
Name:	www.ensia.edu.dz
Address: 104.21.25.228
Name:	www.ensia.edu.dz
Address: 172.67.134.218
Name:	www.ensia.edu.dz
Address: 2606:4700:3037::6815:19e4
Name:	www.ensia.edu.dz
Address: 2606:4700:3031::ac43:86da