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

Non-authoritative answer:
online.billdesk.com	canonical name = online.billdesk.com.edgekey.net.
online.billdesk.com.edgekey.net	canonical name = e8784.dsca.akamaiedge.net.
Name:	e8784.dsca.akamaiedge.net
Address: 23.222.21.137
Name:	e8784.dsca.akamaiedge.net
Address: 2600:1405:d400:380::2250
Name:	e8784.dsca.akamaiedge.net
Address: 2600:1405:d400:384::2250