v5b53cb91.use4.send.mailgun.net CNAME DNS records

CNAME Canonical name

Apex domains cannot have CNAME records.

Question and response

Question

dig v5b53cb91.use4.send.mailgun.net. NS

Answer

v5b53cb91.use4.send.mailgun.net. 5 NS ns-cloud-e2.googledomains.com. v5b53cb91.use4.send.mailgun.net. 5 NS ns-cloud-e4.googledomains.com. v5b53cb91.use4.send.mailgun.net. 5 NS ns-cloud-e1.googledomains.com. v5b53cb91.use4.send.mailgun.net. 5 NS ns-cloud-e3.googledomains.com.

Authority

The response has no authority records.

Additional

ns-cloud-e1.googledomains.com. 3 A 216.239.32.110 ns-cloud-e2.googledomains.com. 3 A 216.239.34.110 ns-cloud-e3.googledomains.com. 3 A 216.239.36.110 ns-cloud-e4.googledomains.com. 3 A 216.239.38.110 ns-cloud-e1.googledomains.com. 3 AAAA 2001:4860:4802:32:0:0:0:6e ns-cloud-e2.googledomains.com. 3 AAAA 2001:4860:4802:34:0:0:0:6e ns-cloud-e3.googledomains.com. 3 AAAA 2001:4860:4802:36:0:0:0:6e ns-cloud-e4.googledomains.com. 3 AAAA 2001:4860:4802:38:0:0:0:6e . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0