Apex domains cannot have CNAME records.
Question and response
Question
dig lwsdns.com. NS
Answer
lwsdns.com. 5 NS ns3.lwsdns.com.
lwsdns.com. 5 NS ns4.lwsdns.com.
lwsdns.com. 5 NS ns1.lwsdns.com.
lwsdns.com. 5 NS ns2.lwsdns.com.
Authority
The response has no authority records.
Additional
ns1.lwsdns.com. 5 A 91.216.107.179
ns2.lwsdns.com. 5 A 185.98.131.84
ns3.lwsdns.com. 5 A 91.216.107.20
ns4.lwsdns.com. 5 A 91.107.253.2
ns1.lwsdns.com. 5 AAAA 2a00:7ee0:1:0:6:0:0:16
ns2.lwsdns.com. 5 AAAA 2a00:7ee0:8:0:6:0:0:11
ns3.lwsdns.com. 5 AAAA 2a00:7ee0:1:0:6:0:0:10
ns4.lwsdns.com. 5 AAAA 2a01:4f8:1c1b:272c:0:0:0:0
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0