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

Results for*.kyn.arexdata.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-01-10T11:06:13.058	2022-01-10T10:06:12	2022-04-10T10:06:11	*.kyn.arexdata.com	*.kyn.arexdata.com	C=US, O=Let's Encrypt, CN=R3
2022-01-10T11:06:13.058	2022-01-10T10:06:12	2022-04-10T10:06:11	*.kyn.arexdata.com	*.kyn.arexdata.com	C=US, O=Let's Encrypt, CN=R3
2022-01-10T11:06:12.478	2022-01-10T10:06:12	2022-04-10T10:06:11	*.kyn.arexdata.com	*.kyn.arexdata.com	C=US, O=Let's Encrypt, CN=R3
2022-01-10T11:06:12.478	2022-01-10T10:06:12	2022-04-10T10:06:11	*.kyn.arexdata.com	*.kyn.arexdata.com	C=US, O=Let's Encrypt, CN=R3
2021-10-08T09:53:00.942	2021-10-08T08:53:00	2022-01-06T08:52:59	*.kyn.arexdata.com	*.kyn.arexdata.com	C=US, O=Let's Encrypt, CN=R3
2021-10-08T09:53:00.942	2021-10-08T08:53:00	2022-01-06T08:52:59	*.kyn.arexdata.com	*.kyn.arexdata.com	C=US, O=Let's Encrypt, CN=R3
2021-10-08T09:53:00.47	2021-10-08T08:53:00	2022-01-06T08:52:59	*.kyn.arexdata.com	*.kyn.arexdata.com	C=US, O=Let's Encrypt, CN=R3
2021-10-08T09:53:00.47	2021-10-08T08:53:00	2022-01-06T08:52:59	*.kyn.arexdata.com	*.kyn.arexdata.com	C=US, O=Let's Encrypt, CN=R3