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

Results for*.tailoe.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-01-07T18:56:53.651	2020-01-07T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.tailoe.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2020-01-07T18:56:53.651	2020-01-07T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.tailoe.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-02-11T21:17:54.072	2019-02-07T00:00:00	2020-02-07T12:00:00	sni.cloudflaressl.com	*.tailoe.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-02-11T21:17:54.072	2019-02-07T00:00:00	2020-02-07T12:00:00	sni.cloudflaressl.com	*.tailoe.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-02-07T21:37:35.569	2019-02-07T00:00:00	2020-02-07T12:00:00	sni.cloudflaressl.com	*.tailoe.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-02-07T21:37:35.569	2019-02-07T00:00:00	2020-02-07T12:00:00	sni.cloudflaressl.com	*.tailoe.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2