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

Results formx1.tld-mx.com

Resolver

Location

A

Name	TTL	Value
mx1.tld-mx.com	1800	2c0f:f850:1:32::2Diamatrix C.C / DiaMatrix cc
mx1.tld-mx.com	1800	2c0f:f850:1:34::2Diamatrix C.C / DiaMatrix cc
mx1.tld-mx.com	1800	2c0f:f850:1:217::2Diamatrix C.C / DiaMatrix cc
mx1.tld-mx.com	1800	2c0f:f850:1:218::2Diamatrix C.C / DiaMatrix cc
mx1.tld-mx.com	1800	2c0f:f850:1:219::2Diamatrix C.C / DiaMatrix cc