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

Results formailhog.arrowbow.hypernode.io

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2024-08-08T00:19:36.735	2024-08-07T23:21:06	2024-11-05T23:21:05	mailhog.arrowbow.hypernode.io	mailhog.arrowbow.hypernode.io	C=US, O=Let's Encrypt, CN=E6
2024-08-08T00:19:36.4	2024-08-07T23:21:06	2024-11-05T23:21:05	mailhog.arrowbow.hypernode.io	mailhog.arrowbow.hypernode.io	C=US, O=Let's Encrypt, CN=E6
2024-06-08T14:20:58.053	2024-06-08T13:20:57	2024-09-06T13:20:56	mailhog.arrowbow.hypernode.io	mailhog.arrowbow.hypernode.io	C=US, O=Let's Encrypt, CN=E6
2024-06-08T14:20:57.56	2024-06-08T13:20:57	2024-09-06T13:20:56	mailhog.arrowbow.hypernode.io	mailhog.arrowbow.hypernode.io	C=US, O=Let's Encrypt, CN=E6