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

Results for*.smsinline.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2018-12-12T18:56:35.302	2018-12-10T00:00:00	2019-12-10T12:00:00	smsinline.com	*.smsinline.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2018-12-12T18:56:35.302	2018-12-10T00:00:00	2019-12-10T12:00:00	smsinline.com	*.smsinline.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2018-12-10T04:24:34.008	2018-12-10T00:00:00	2019-12-10T12:00:00	smsinline.com	*.smsinline.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2018-12-10T04:24:34.008	2018-12-10T00:00:00	2019-12-10T12:00:00	smsinline.com	*.smsinline.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2018-12-10T04:24:32.248	2018-12-10T00:00:00	2019-12-10T12:00:00	smsinline.com	*.smsinline.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc RSA CA-1
2018-12-10T04:24:32.248	2018-12-10T00:00:00	2019-12-10T12:00:00	smsinline.com	*.smsinline.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc RSA CA-1
2018-12-09T16:05:51.197	2018-12-09T00:00:00	2019-12-09T12:00:00	sni.cloudflaressl.com	*.smsinline.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2018-12-09T16:05:51.197	2018-12-09T00:00:00	2019-12-09T12:00:00	sni.cloudflaressl.com	*.smsinline.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2