Apex domains cannot have CNAME records.
Question and response
Question
dig webspace.uz. NS
Answer
webspace.uz. 4 NS dns1.webspace.uz.
webspace.uz. 4 NS dns2.webspace.uz.
webspace.uz. 4 NS dns3.webspace.uz.
webspace.uz. 4 NS dns4.webspace.uz.
Authority
The response has no authority records.
Additional
dns1.webspace.uz. 4 A 95.46.96.77
dns2.webspace.uz. 4 A 185.74.4.43
dns3.webspace.uz. 4 A 188.130.162.11
dns4.webspace.uz. 4 A 77.222.46.10
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0