shell:$ nslookup -timeout=2 -retry=1 'learnonline.edu.lk'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	learnonline.edu.lk
Address: 172.67.183.229
Name:	learnonline.edu.lk
Address: 104.21.18.236
Name:	learnonline.edu.lk
Address: 2606:4700:3035::6815:12ec
Name:	learnonline.edu.lk
Address: 2606:4700:3030::ac43:b7e5