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

Results for*.efectonaim.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-03-20T05:42:58.427	2019-03-20T04:42:57	2019-06-18T04:42:57	efectonaim.com	*.efectonaim.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-03-20T05:42:58.427	2019-03-20T04:42:57	2019-06-18T04:42:57	efectonaim.com	*.efectonaim.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-03-20T05:42:57.423	2019-03-20T04:42:57	2019-06-18T04:42:57	efectonaim.com	*.efectonaim.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-03-20T05:42:57.423	2019-03-20T04:42:57	2019-06-18T04:42:57	efectonaim.com	*.efectonaim.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-03-16T03:24:35.77	2019-03-16T02:24:34	2019-06-14T02:24:34	nuruerotic.com	*.efectonaim.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-03-16T03:24:35.77	2019-03-16T02:24:34	2019-06-14T02:24:34	nuruerotic.com	*.efectonaim.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-03-16T03:24:34.807	2019-03-16T02:24:34	2019-06-14T02:24:34	nuruerotic.com	*.efectonaim.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-03-16T03:24:34.807	2019-03-16T02:24:34	2019-06-14T02:24:34	nuruerotic.com	*.efectonaim.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3