shell:$ nslookup -timeout=2 -retry=1 'app.eurosoft-dz.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
app.eurosoft-dz.com	canonical name = eurosoft-app.ddns.net.
Name:	eurosoft-app.ddns.net
Address: 154.250.7.188