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

Results for*.walletsupport.org

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-04-21T08:58:48.6	2021-04-21T07:58:48	2021-07-20T07:58:48	*.walletsupport.org	*.walletsupport.org	C=US, O=Let's Encrypt, CN=R3
2021-04-21T08:58:48.6	2021-04-21T07:58:48	2021-07-20T07:58:48	*.walletsupport.org	*.walletsupport.org	C=US, O=Let's Encrypt, CN=R3
2021-04-21T08:58:48.409	2021-04-21T07:58:48	2021-07-20T07:58:48	*.walletsupport.org	*.walletsupport.org	C=US, O=Let's Encrypt, CN=R3
2021-04-21T08:58:48.409	2021-04-21T07:58:48	2021-07-20T07:58:48	*.walletsupport.org	*.walletsupport.org	C=US, O=Let's Encrypt, CN=R3
2020-02-11T12:41:45.477	2020-02-11T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.walletsupport.org	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2020-02-11T12:41:45.477	2020-02-11T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.walletsupport.org	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2