Apex domains cannot have CNAME records.
Question and response
Question
dig cbielanska.com. NS
Answer
cbielanska.com. 5 NS ns1.cbielanska.com.
cbielanska.com. 5 NS ns2.cbielanska.com.
Authority
The response has no authority records.
Additional
ns1.cbielanska.com. 5 A 31.57.36.18
ns2.cbielanska.com. 5 A 64.235.39.111
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0