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

Results for*.flysafe.app

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-06-03T00:52:31.501	2022-06-02T23:52:31	2022-08-31T23:52:30	flysafe.app	*.flysafe.app	C=US, O=Let's Encrypt, CN=R3
2022-06-03T00:52:31.501	2022-06-02T23:52:31	2022-08-31T23:52:30	flysafe.app	*.flysafe.app	C=US, O=Let's Encrypt, CN=R3
2022-06-03T00:52:31.322	2022-06-02T23:52:31	2022-08-31T23:52:30	flysafe.app	*.flysafe.app	C=US, O=Let's Encrypt, CN=R3
2022-06-03T00:52:31.322	2022-06-02T23:52:31	2022-08-31T23:52:30	flysafe.app	*.flysafe.app	C=US, O=Let's Encrypt, CN=R3
2021-06-17T18:16:46.93	2021-06-17T00:00:00	2022-06-16T23:59:59	sni.cloudflaressl.com	*.flysafe.app	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2021-06-17T18:16:46.93	2021-06-17T00:00:00	2022-06-16T23:59:59	sni.cloudflaressl.com	*.flysafe.app	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3