shell:$ nslookup -timeout=2 -retry=1 'mtnconversions.whappsflyer.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
Name:	mtnconversions.whappsflyer.com
Address: 162.159.140.158
Name:	mtnconversions.whappsflyer.com
Address: 172.66.0.156