shell:$ nslookup -timeout=2 -retry=1 '780.ir'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	780.ir
Address: 212.80.4.41
Name:	780.ir
Address: 212.80.4.42
Name:	780.ir
Address: 212.80.4.40