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

Results forwww.we.mobileappdeveloper.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-11-15T18:10:53.654	2021-11-15T17:10:52	2022-02-13T17:10:51	www.we.mobileappdeveloper.com	www.we.mobileappdeveloper.com	C=US, O=Let's Encrypt, CN=R3
2021-11-15T18:10:53.043	2021-11-15T17:10:52	2022-02-13T17:10:51	www.we.mobileappdeveloper.com	www.we.mobileappdeveloper.com	C=US, O=Let's Encrypt, CN=R3
2021-05-22T15:45:57.959	2021-05-22T14:45:57	2021-08-20T14:45:57	www.we.mobileappdeveloper.com	www.we.mobileappdeveloper.com	C=US, O=Let's Encrypt, CN=R3
2021-05-22T15:45:57.691	2021-05-22T14:45:57	2021-08-20T14:45:57	www.we.mobileappdeveloper.com	www.we.mobileappdeveloper.com	C=US, O=Let's Encrypt, CN=R3
2021-02-09T03:18:38.521	2021-02-09T02:18:38	2021-05-10T02:18:38	www.we.mobileappdeveloper.com	www.we.mobileappdeveloper.com	C=US, O=Let's Encrypt, CN=R3
2021-02-09T03:18:38.419	2021-02-09T02:18:38	2021-05-10T02:18:38	www.we.mobileappdeveloper.com	www.we.mobileappdeveloper.com	C=US, O=Let's Encrypt, CN=R3