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

Results for*.memast.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-08-18T22:03:11.792	2020-08-18T00:00:00	2021-08-18T23:59:59	*.memast.com	*.memast.com	C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA
2020-08-18T22:03:11.792	2020-08-18T00:00:00	2021-08-18T23:59:59	*.memast.com	*.memast.com	C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA
2020-08-18T22:03:11.182	2020-08-18T00:00:00	2021-08-18T23:59:59	*.memast.com	*.memast.com	C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA
2020-08-18T22:03:11.182	2020-08-18T00:00:00	2021-08-18T23:59:59	*.memast.com	*.memast.com	C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA