Apex domains cannot have CNAME records.
Question and response
Question
dig deleted-domain.eu. NS
Answer
deleted-domain.eu. 5 NS ns6.mpower.nl.
deleted-domain.eu. 5 NS ns5.mpower.nl.
Authority
The response has no authority records.
Additional
ns5.mpower.nl. 5 A 217.18.70.157
ns6.mpower.nl. 5 A 217.18.70.158
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0