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

Results for*.busbot.me

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-03-22T01:32:11.587	2019-03-18T00:00:00	2020-03-18T12:00:00	sni.cloudflaressl.com	*.busbot.me	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-03-22T01:32:11.587	2019-03-18T00:00:00	2020-03-18T12:00:00	sni.cloudflaressl.com	*.busbot.me	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-03-18T02:47:51.654	2019-03-18T00:00:00	2020-03-18T12:00:00	sni.cloudflaressl.com	*.busbot.me	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-03-18T02:47:51.654	2019-03-18T00:00:00	2020-03-18T12:00:00	sni.cloudflaressl.com	*.busbot.me	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2