Question and response
Question
dig mail.rootlayer.net. NS
Answer
mail.rootlayer.net. 3 CNAME rootlayer.net.
rootlayer.net. 3 NS ns2.rootlayer.net.
rootlayer.net. 3 NS ns1.rootlayer.net.
Authority
The response has no authority records.
Additional
ns1.rootlayer.net. 3 A 45.137.21.13
ns2.rootlayer.net. 3 A 45.137.21.14
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0