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

Results for*.secfi.org

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-11-04T01:11:36.87	2021-11-04T00:00:00	2022-11-03T23:59:59	sni.cloudflaressl.com	*.secfi.org	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2021-11-04T01:11:36.87	2021-11-04T00:00:00	2022-11-03T23:59:59	sni.cloudflaressl.com	*.secfi.org	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2021-03-28T07:56:54.368	2020-12-05T00:00:00	2021-12-04T23:59:59	sni.cloudflaressl.com	*.secfi.org	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2021-03-28T07:56:54.368	2020-12-05T00:00:00	2021-12-04T23:59:59	sni.cloudflaressl.com	*.secfi.org	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2020-12-05T04:58:47.921	2020-12-05T00:00:00	2021-12-04T23:59:59	sni.cloudflaressl.com	*.secfi.org	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2020-12-05T04:58:47.921	2020-12-05T00:00:00	2021-12-04T23:59:59	sni.cloudflaressl.com	*.secfi.org	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2020-12-02T03:10:41.065	2020-12-02T00:00:00	2021-12-02T23:59:59	secfi.org	*.secfi.org	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-12-02T03:10:41.065	2020-12-02T00:00:00	2021-12-02T23:59:59	secfi.org	*.secfi.org	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1