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

Results for*.interval.vc

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-01-29T21:21:51.909	2021-01-03T00:00:00	2022-01-03T23:59:59	interval.vc	*.interval.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-01-29T21:21:51.909	2021-01-03T00:00:00	2022-01-03T23:59:59	interval.vc	*.interval.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-01-03T10:28:55.525	2021-01-03T00:00:00	2022-01-03T23:59:59	interval.vc	*.interval.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-01-03T10:28:55.525	2021-01-03T00:00:00	2022-01-03T23:59:59	interval.vc	*.interval.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1