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

Results for*.stage.mapworks.io

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2016-11-04T05:48:51.6	2016-10-25T00:00:00	2019-11-06T23:59:59	*.stage.mapworks.io	*.stage.mapworks.io	C=GB, ST=Greater Manchester, L=Salford, O=COMODO CA Limited, CN=COMODO RSA Domain Validation Secure Server CA
2016-11-04T05:48:51.6	2016-10-25T00:00:00	2019-11-06T23:59:59	*.stage.mapworks.io	*.stage.mapworks.io	C=GB, ST=Greater Manchester, L=Salford, O=COMODO CA Limited, CN=COMODO RSA Domain Validation Secure Server CA
2014-12-03T22:29:23.081	2014-11-07T00:00:00	2016-11-06T23:59:59	*.stage.mapworks.io	*.stage.mapworks.io	C=GB, ST=Greater Manchester, L=Salford, O=COMODO CA Limited, CN=COMODO RSA Domain Validation Secure Server CA
2014-12-03T22:29:23.081	2014-11-07T00:00:00	2016-11-06T23:59:59	*.stage.mapworks.io	*.stage.mapworks.io	C=GB, ST=Greater Manchester, L=Salford, O=COMODO CA Limited, CN=COMODO RSA Domain Validation Secure Server CA