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

Non-authoritative answer:
app.u.my	canonical name = custom.bnc.lt.
Name:	custom.bnc.lt
Address: 35.167.216.18
Name:	custom.bnc.lt
Address: 44.252.253.233
Name:	custom.bnc.lt
Address: 44.230.115.150