Apex domains cannot have CNAME records.
Question and response
Question
dig encirca.net. NS
Answer
encirca.net. 5 NS sec1.encirca.com.
encirca.net. 5 NS standard3.encirca.net.
encirca.net. 5 NS standard4.encirca.net.
Authority
The response has no authority records.
Additional
standard3.encirca.net. 5 A 162.159.11.194
standard4.encirca.net. 5 A 198.41.223.141
standard3.encirca.net. 5 AAAA 2400:cb00:2049:1:0:0:a29f:bc2
standard4.encirca.net. 5 AAAA 2400:cb00:2049:1:0:0:c629:df8d
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0