Apex domains cannot have CNAME records.
Question and response
Question
dig networktimefoundation.org. NS
Answer
networktimefoundation.org. 5 NS ns1.everett.org.
networktimefoundation.org. 5 NS ns2.everett.org.
Authority
The response has no authority records.
Additional
ns1.everett.org. 4 A 66.220.13.229
ns2.everett.org. 4 A 66.220.13.230
ns1.everett.org. 4 AAAA 2001:470:1:205:0:0:0:229
ns2.everett.org. 4 AAAA 2001:470:1:205:0:0:0:230
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0