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

Non-authoritative answer:
www.srilankatelecom.com	canonical name = srilankatelecom.com.
Name:	srilankatelecom.com
Address: 145.79.209.164
Name:	srilankatelecom.com
Address: 2a02:4780:11:2051:0:1384:9ce4:2