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

Results for*.staging.upload.videointerview.jp

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-09-15T13:02:59.675	2019-06-29T00:00:00	2020-07-29T12:00:00	staging.upload.videointerview.jp	*.staging.upload.videointerview.jp	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon
2019-09-15T13:02:59.675	2019-06-29T00:00:00	2020-07-29T12:00:00	staging.upload.videointerview.jp	*.staging.upload.videointerview.jp	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon
2019-06-29T02:23:05.294	2019-06-29T00:00:00	2020-07-29T12:00:00	staging.upload.videointerview.jp	*.staging.upload.videointerview.jp	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon
2019-06-29T02:23:05.294	2019-06-29T00:00:00	2020-07-29T12:00:00	staging.upload.videointerview.jp	*.staging.upload.videointerview.jp	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon
2018-07-27T00:34:55.981	2018-07-27T00:00:00	2019-08-27T12:00:00	staging.upload.videointerview.jp	*.staging.upload.videointerview.jp	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon
2018-07-27T00:34:55.981	2018-07-27T00:00:00	2019-08-27T12:00:00	staging.upload.videointerview.jp	*.staging.upload.videointerview.jp	C=US, O=Amazon, OU=Server CA 1B, CN=Amazon