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

Non-authoritative answer:
Name:	devfest.gdgpatna.com
Address: 104.21.83.10
Name:	devfest.gdgpatna.com
Address: 172.67.166.194
Name:	devfest.gdgpatna.com
Address: 2606:4700:3032::ac43:a6c2
Name:	devfest.gdgpatna.com
Address: 2606:4700:3037::6815:530a