shell:$ nslookup -timeout=2 -retry=1 'whatsapp.customlinks.appsflyer.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
whatsapp.customlinks.appsflyer.com	canonical name = onelinkalb.customlinks.appsflyer.com.cdn.cloudflare.net.
Name:	onelinkalb.customlinks.appsflyer.com.cdn.cloudflare.net
Address: 172.66.0.157
Name:	onelinkalb.customlinks.appsflyer.com.cdn.cloudflare.net
Address: 162.159.140.159