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

Non-authoritative answer:
Name:	app.sa.zain.com
Address: 185.23.127.171
Name:	app.sa.zain.com
Address: 2a02:cb81:1005::71