shell:$ nslookup -timeout=2 -retry=1 'sep.shaparak.ir'
;; communications error to 1.1.1.1#53: timed out
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	sep.shaparak.ir
Address: 91.240.182.20
;; communications error to 1.1.1.1#53: timed out