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

Results for*.drilldriver.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2023-01-17T19:09:23.72	2023-01-17T18:09:23	2023-04-17T18:09:22	drilldriver.com	*.drilldriver.com	C=US, O=Let's Encrypt, CN=R3
2023-01-17T19:09:23.72	2023-01-17T18:09:23	2023-04-17T18:09:22	drilldriver.com	*.drilldriver.com	C=US, O=Let's Encrypt, CN=R3
2023-01-17T19:09:23.359	2023-01-17T18:09:23	2023-04-17T18:09:22	drilldriver.com	*.drilldriver.com	C=US, O=Let's Encrypt, CN=R3
2023-01-17T19:09:23.359	2023-01-17T18:09:23	2023-04-17T18:09:22	drilldriver.com	*.drilldriver.com	C=US, O=Let's Encrypt, CN=R3
2022-11-18T17:08:49.465	2022-11-18T16:08:49	2023-02-16T16:08:48	drilldriver.com	*.drilldriver.com	C=US, O=Let's Encrypt, CN=R3
2022-11-18T17:08:49.465	2022-11-18T16:08:49	2023-02-16T16:08:48	drilldriver.com	*.drilldriver.com	C=US, O=Let's Encrypt, CN=R3
2022-11-18T17:08:49.299	2022-11-18T16:08:49	2023-02-16T16:08:48	drilldriver.com	*.drilldriver.com	C=US, O=Let's Encrypt, CN=R3
2022-11-18T17:08:49.299	2022-11-18T16:08:49	2023-02-16T16:08:48	drilldriver.com	*.drilldriver.com	C=US, O=Let's Encrypt, CN=R3