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

Results for*.dev.sys.andersonopt.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-03-05T09:52:42.072	2020-11-09T00:00:00	2021-12-08T23:59:59	sys.andersonopt.com	*.dev.sys.andersonopt.com	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon
2021-03-05T09:52:42.072	2020-11-09T00:00:00	2021-12-08T23:59:59	sys.andersonopt.com	*.dev.sys.andersonopt.com	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon
2020-11-09T13:33:24.441	2020-11-09T00:00:00	2021-12-08T23:59:59	sys.andersonopt.com	*.dev.sys.andersonopt.com	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon
2020-11-09T13:33:24.441	2020-11-09T00:00:00	2021-12-08T23:59:59	sys.andersonopt.com	*.dev.sys.andersonopt.com	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon