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

Results for*.foolish.ai

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-07-07T03:27:36.699	2020-07-07T00:00:00	2021-07-07T12:00:00	sni.cloudflaressl.com	*.foolish.ai	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2020-07-07T03:27:36.699	2020-07-07T00:00:00	2021-07-07T12:00:00	sni.cloudflaressl.com	*.foolish.ai	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2019-11-20T12:56:58.959	2019-11-20T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.foolish.ai	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-11-20T12:56:58.959	2019-11-20T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.foolish.ai	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2018-12-21T05:42:11.635	2018-12-21T00:00:00	2019-12-21T12:00:00	sni.cloudflaressl.com	*.foolish.ai	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2018-12-21T05:42:11.635	2018-12-21T00:00:00	2019-12-21T12:00:00	sni.cloudflaressl.com	*.foolish.ai	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2