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

Results forwww.testing.stratlantis.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-05-11T18:37:50.706	2020-05-11T00:00:00	2020-08-09T23:59:59	testing.stratlantis.com	www.testing.stratlantis.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2020-05-11T18:37:50.401	2020-05-11T00:00:00	2020-08-09T23:59:59	testing.stratlantis.com	www.testing.stratlantis.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2020-05-11T18:35:05.374	2020-05-11T00:00:00	2020-08-09T23:59:59	testing.stratlantis.com	www.testing.stratlantis.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2020-05-11T18:35:05.009	2020-05-11T00:00:00	2020-08-09T23:59:59	testing.stratlantis.com	www.testing.stratlantis.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"