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

Results forhostmaster.geneticshift.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2023-11-07T19:31:02.987	2023-11-07T18:31:02	2024-02-05T18:31:01	hostmaster.geneticshift.com	hostmaster.geneticshift.com	C=US, O=Let's Encrypt, CN=R3
2023-11-07T19:31:02.763	2023-11-07T18:31:02	2024-02-05T18:31:01	hostmaster.geneticshift.com	hostmaster.geneticshift.com	C=US, O=Let's Encrypt, CN=R3
2020-10-25T17:46:31.791	2020-10-22T00:00:00	2021-10-22T23:59:59	geneticshift.com	*.geneticshift.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-10-22T22:49:06.455	2020-10-22T00:00:00	2021-10-22T23:59:59	geneticshift.com	*.geneticshift.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1