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

Non-authoritative answer:
Name:	app.yellowmessenger.com
Address: 104.18.1.51
Name:	app.yellowmessenger.com
Address: 104.18.0.51
Name:	app.yellowmessenger.com
Address: 2606:4700::6812:33
Name:	app.yellowmessenger.com
Address: 2606:4700::6812:133