Apex domains cannot have CNAME records.
Question and response
Question
dig name-services.com. NS
Answer
name-services.com. 5 NS dns3.name-services.com.
name-services.com. 5 NS dns2.name-services.com.
name-services.com. 5 NS dns5.name-services.com.
name-services.com. 5 NS dns4.name-services.com.
name-services.com. 5 NS dns1.name-services.com.
Authority
The response has no authority records.
Additional
dns1.name-services.com. 5 A 64.98.148.137
dns2.name-services.com. 5 A 216.40.47.201
dns3.name-services.com. 5 A 64.98.148.138
dns4.name-services.com. 5 A 216.40.47.202
dns5.name-services.com. 5 A 64.98.148.139
dns1.name-services.com. 5 AAAA 2604:4000:2800:2000:64:98:148:137
dns2.name-services.com. 5 AAAA 2604:4000:0:d:216:40:47:201
dns3.name-services.com. 5 AAAA 2604:4000:2800:2000:64:98:148:138
dns4.name-services.com. 5 AAAA 2604:4000:0:d:216:40:47:202
dns5.name-services.com. 5 AAAA 2604:4000:2800:2000:64:98:148:139
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0