Apex domains cannot have CNAME records.
Question and response
Question
dig pointhq.com. NS
Answer
pointhq.com. 2 NS dns-ca.pointhq.com.
pointhq.com. 2 NS dns-us.pointhq.com.
pointhq.com. 2 NS dns-au.pointhq.com.
pointhq.com. 2 NS dns-uk.pointhq.com.
pointhq.com. 2 NS ns1-global.pointhq.com.
Authority
The response has no authority records.
Additional
dns-au.pointhq.com. 2 A 149.28.161.22
dns-ca.pointhq.com. 2 A 155.138.133.80
dns-uk.pointhq.com. 2 A 78.141.239.142
dns-us.pointhq.com. 2 A 45.63.79.62
dns-au.pointhq.com. 2 AAAA 2001:19f0:5801:1d1b:7777:7777:7777:7777
dns-ca.pointhq.com. 2 AAAA 2001:19f0:b001:ed8:7777:7777:7777:7777
dns-uk.pointhq.com. 2 AAAA 2001:19f0:7402:4cf:7777:7777:7777:7777
dns-us.pointhq.com. 2 AAAA 2001:19f0:5c01:e69:7777:7777:7777:7777
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0