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

Results for*.mxkaa.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-07-25T20:11:05.04	2020-07-18T00:00:00	2021-07-18T12:00:00	sni.cloudflaressl.com	*.mxkaa.com	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2020-07-25T20:11:05.04	2020-07-18T00:00:00	2021-07-18T12:00:00	sni.cloudflaressl.com	*.mxkaa.com	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2020-07-18T13:38:37.034	2020-07-18T00:00:00	2021-07-18T12:00:00	sni.cloudflaressl.com	*.mxkaa.com	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2020-07-18T13:38:37.034	2020-07-18T00:00:00	2021-07-18T12:00:00	sni.cloudflaressl.com	*.mxkaa.com	C=US, O="Cloudflare, Inc.", CN=Cloudflare Inc ECC CA-3
2019-11-18T17:14:55.456	2019-11-16T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.mxkaa.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-11-18T17:14:55.456	2019-11-16T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.mxkaa.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-11-16T13:44:33.788	2019-11-16T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.mxkaa.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-11-16T13:44:33.788	2019-11-16T00:00:00	2020-10-09T12:00:00	sni.cloudflaressl.com	*.mxkaa.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2