shell:$ nslookup -timeout=2 -retry=1 'www.researchgate.net'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	www.researchgate.net
Address: 172.64.146.247
Name:	www.researchgate.net
Address: 104.18.41.9
Name:	www.researchgate.net
Address: 2606:4700:4403::6812:2909
Name:	www.researchgate.net
Address: 2606:4700:4401::ac40:92f7