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

Results for*.earselect.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2018-11-08T20:25:05.99	2018-11-06T00:00:00	2019-11-06T12:00:00	sni.cloudflaressl.com	*.earselect.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2018-11-08T20:25:05.99	2018-11-06T00:00:00	2019-11-06T12:00:00	sni.cloudflaressl.com	*.earselect.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2018-11-06T16:11:15.091	2018-11-06T00:00:00	2019-11-06T12:00:00	sni.cloudflaressl.com	*.earselect.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2018-11-06T16:11:15.091	2018-11-06T00:00:00	2019-11-06T12:00:00	sni.cloudflaressl.com	*.earselect.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2