shell:$ nslookup -timeout=2 -retry=1 'dns.whatsapp.org'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
dns.whatsapp.org	canonical name = www.whatsapp.com.
www.whatsapp.com	canonical name = mmx-ds.cdn.whatsapp.net.
Name:	mmx-ds.cdn.whatsapp.net
Address: 31.13.80.53
Name:	mmx-ds.cdn.whatsapp.net
Address: 2a03:2880:f20e:c5:face:b00c:0:167