Apex domains cannot have CNAME records.
Question and response
Question
dig namecheaphosting.com. NS
Answer
namecheaphosting.com. 5 NS edns4.registrar-servers.com.
namecheaphosting.com. 5 NS edns4.ultradns.biz.
namecheaphosting.com. 5 NS edns3.registrar-servers.com.
namecheaphosting.com. 5 NS edns4.ultradns.com.
namecheaphosting.com. 5 NS edns4.ultradns.net.
namecheaphosting.com. 5 NS edns4.ultradns.org.
Authority
The response has no authority records.
Additional
edns3.registrar-servers.com. 5 A 2.16.130.65
edns3.registrar-servers.com. 5 A 95.100.175.67
edns3.registrar-servers.com. 5 A 193.108.91.149
edns4.registrar-servers.com. 5 A 2.22.230.67
edns4.registrar-servers.com. 5 A 23.211.132.64
edns4.registrar-servers.com. 5 A 96.7.49.64
edns3.registrar-servers.com. 5 AAAA 2600:1401:2:0:0:0:0:95
edns3.registrar-servers.com. 5 AAAA 2600:1480:9800:0:0:0:0:41
edns3.registrar-servers.com. 5 AAAA 2a02:26f0:67:0:0:0:0:43
edns4.registrar-servers.com. 5 AAAA 2600:1406:1b:0:0:0:0:40
edns4.registrar-servers.com. 5 AAAA 2600:1408:1c:0:0:0:0:40
edns4.registrar-servers.com. 5 AAAA 2600:1480:800:0:0:0:0:43
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0