Apex domains cannot have CNAME records.
Question and response
Question
dig elite-dns.org. NS
Answer
elite-dns.org. 5 NS ns2.elite-dns.co.uk.
elite-dns.org. 5 NS ns2.elite-dns.org.
elite-dns.org. 5 NS ns1.elite-dns.net.
elite-dns.org. 5 NS ns1.elite-dns.org.
elite-dns.org. 5 NS ns3.elite-dns.org.
Authority
The response has no authority records.
Additional
ns1.elite-dns.net. 5 A 92.53.240.10
ns1.elite-dns.org. 5 A 92.53.240.10
ns2.elite-dns.co.uk. 5 A 92.53.243.10
ns2.elite-dns.org. 5 A 92.53.243.10
ns3.elite-dns.org. 5 A 92.53.241.10
ns1.elite-dns.net. 5 AAAA 2a00:85c0:1:0:0:0:240:10
ns1.elite-dns.org. 5 AAAA 2a00:85c0:1:0:0:0:240:10
ns2.elite-dns.co.uk. 5 AAAA 2a00:85c0:3:0:0:0:243:10
ns2.elite-dns.org. 5 AAAA 2a00:85c0:3:0:0:0:243:10
ns3.elite-dns.org. 5 AAAA 2a00:85c0:1:0:0:0:241:10
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0