Apex domains cannot have CNAME records.
Question and response
Question
dig tldcyprus.com. NS
Answer
tldcyprus.com. 1 NS ns2.tldcyprus.com.
tldcyprus.com. 1 NS ns1.tldcyprus.com.
Authority
The response has no authority records.
Additional
ns1.tldcyprus.com. 1 A 5.61.51.61
ns2.tldcyprus.com. 1 A 185.238.168.78
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0