Apex domains cannot have CNAME records.
Question and response
Question
dig jschosting.se. NS
Answer
jschosting.se. 5 NS dns02.jschosting.se.
jschosting.se. 5 NS dns01.jschosting.se.
Authority
The response has no authority records.
Additional
dns01.jschosting.se. 5 A 80.84.36.54
dns02.jschosting.se. 5 A 88.206.209.10
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0