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

Results for*.taxsem.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2023-05-09T03:54:54.003	2023-05-09T00:00:00	2024-06-07T23:59:59	taxsem.com	*.taxsem.com	C=US, O=Amazon, CN=Amazon RSA 2048 M01
2023-05-09T03:54:54.003	2023-05-09T00:00:00	2024-06-07T23:59:59	taxsem.com	*.taxsem.com	C=US, O=Amazon, CN=Amazon RSA 2048 M01
2023-02-21T15:52:45.277	2023-02-21T00:00:00	2023-07-07T23:59:59	taxsem.com	*.taxsem.com	C=US, O=Amazon, CN=Amazon RSA 2048 M01
2023-02-21T15:52:45.277	2023-02-21T00:00:00	2023-07-07T23:59:59	taxsem.com	*.taxsem.com	C=US, O=Amazon, CN=Amazon RSA 2048 M01
2022-06-07T04:50:09.162	2022-06-07T00:00:00	2023-07-07T23:59:59	taxsem.com	*.taxsem.com	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon
2022-06-07T04:50:09.162	2022-06-07T00:00:00	2023-07-07T23:59:59	taxsem.com	*.taxsem.com	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon