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

Results forns-76.awsdns-09.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2017-09-01T18:26:17.003	2017-09-01T18:19:58	2018-09-01T18:19:58	www.procert.net.ve	ns-76.awsdns-09.com.	emailAddress=contacto@procert.net.ve, L=Chacao, ST=Miranda, OU=Proveedor de Certificados PROCERT, O=Sistema Nacional de Certificacion Electronica, C=VE, CN=PSCProcert
2015-12-22T12:47:22.21	2015-12-18T20:01:32	2016-12-17T20:01:32	ura.procert.net.ve	ns-76.awsdns-09.com	emailAddress=contacto@procert.net.ve, L=Chacao, ST=Miranda, OU=Proveedor de Certificados PROCERT, O=Sistema Nacional de Certificacion Electronica, C=VE, CN=PSCProcert
2015-12-20T11:41:51.525	2015-12-18T20:01:33	2016-12-17T20:01:33	www.procert.net.ve	ns-76.awsdns-09.com	emailAddress=contacto@procert.net.ve, L=Chacao, ST=Miranda, OU=Proveedor de Certificados PROCERT, O=Sistema Nacional de Certificacion Electronica, C=VE, CN=PSCProcert