Apex domains cannot have CNAME records.
Question and response
Question
dig as9105.com. NS
Answer
as9105.com. 5 NS ns0.tiscali.co.uk.
as9105.com. 5 NS ns0.as9105.com.
as9105.com. 5 NS ns1.tiscali.co.uk.
Authority
The response has no authority records.
Additional
ns0.as9105.com. 5 A 185.175.50.10
ns0.tiscali.co.uk. 5 A 81.1.70.10
ns1.tiscali.co.uk. 5 A 212.1.130.10
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0