Apex domains cannot have CNAME records.
Question and response
Question
dig safebrands.tech. NS
Answer
safebrands.tech. 5 NS ns5.safebrands.tech.
safebrands.tech. 5 NS ns3.safebrands.com.
safebrands.tech. 5 NS ns1.safebrands.fr.
safebrands.tech. 5 NS ns2.safebrands.eu.
safebrands.tech. 5 NS ns4.safebrands.org.
Authority
The response has no authority records.
Additional
ns5.safebrands.tech. 5 A 194.50.187.21
ns5.safebrands.tech. 5 AAAA 2a04:2b00:14dd:0:0:0:0:21
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0