It can be anything! An apex, subdomain, or even a URL.

Results forcustomer.mcnet.ad.jp

Resolver

Location

A

Name	TTL	Value
customer.mcnet.ad.jp	900	114.129.2.47NTT SmartConnect Corporation

Name	TTL	Value
customer.mcnet.ad.jp	900	v=spf1 include:customer.mcnet.ad.jp.spf.hosting-pf.net +ip4:219.96.78.0/28 ~all