ipv4.knet.es CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig ipv4.knet.es. NS

Answer

ipv4.knet.es. 3 NS ns-cloud-b1.googledomains.com. ipv4.knet.es. 3 NS ns-cloud-b3.googledomains.com. ipv4.knet.es. 3 NS ns-cloud-b2.googledomains.com. ipv4.knet.es. 3 NS ns-cloud-b4.googledomains.com.

Authority

The response has no authority records.

Additional

ns-cloud-b1.googledomains.com. 2 A 216.239.32.107 ns-cloud-b2.googledomains.com. 2 A 216.239.34.107 ns-cloud-b3.googledomains.com. 2 A 216.239.36.107 ns-cloud-b4.googledomains.com. 2 A 216.239.38.107 ns-cloud-b1.googledomains.com. 2 AAAA 2001:4860:4802:32:0:0:0:6b ns-cloud-b2.googledomains.com. 2 AAAA 2001:4860:4802:34:0:0:0:6b ns-cloud-b3.googledomains.com. 2 AAAA 2001:4860:4802:36:0:0:0:6b ns-cloud-b4.googledomains.com. 2 AAAA 2001:4860:4802:38:0:0:0:6b . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0