Apex domains cannot have CNAME records.
Question and response
Question
dig skywaydc.com. NS
Answer
skywaydc.com. 3 NS ns.skywaydc.net.
skywaydc.com. 3 NS ns.skywaydc.com.
skywaydc.com. 3 NS ns.skywaydc.de.
Authority
The response has no authority records.
Additional
ns.skywaydc.de. 3 A 193.227.117.225
ns.skywaydc.com. 3 A 194.50.187.225
ns.skywaydc.net. 3 A 194.0.182.225
ns.skywaydc.de. 3 AAAA 2a04:2b00:14cc:0:0:0:0:225
ns.skywaydc.com. 3 AAAA 2a04:2b00:14dd:0:0:0:0:225
ns.skywaydc.net. 3 AAAA 2a04:2b00:14ee:0:0:0:0:225
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0