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

Results for*.oeo.ooo

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-04-26T17:46:49.785	2020-04-26T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.oeo.ooo	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2020-04-26T17:46:49.785	2020-04-26T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.oeo.ooo	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-11-27T01:06:28.237	2019-05-27T00:00:00	2020-05-27T12:00:00	sni.cloudflaressl.com	*.oeo.ooo	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-11-27T01:06:28.237	2019-05-27T00:00:00	2020-05-27T12:00:00	sni.cloudflaressl.com	*.oeo.ooo	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-05-27T07:10:19.123	2019-05-27T00:00:00	2020-05-27T12:00:00	sni.cloudflaressl.com	*.oeo.ooo	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-05-27T07:10:19.123	2019-05-27T00:00:00	2020-05-27T12:00:00	sni.cloudflaressl.com	*.oeo.ooo	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2