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

Results for*.kb.hyper.host

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-08-31T02:03:57.609	2019-08-31T01:03:56	2019-11-29T01:03:56	*.kb.hyper.host	*.kb.hyper.host	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-08-31T02:03:57.609	2019-08-31T01:03:56	2019-11-29T01:03:56	*.kb.hyper.host	*.kb.hyper.host	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-08-31T02:03:56.738	2019-08-31T01:03:56	2019-11-29T01:03:56	*.kb.hyper.host	*.kb.hyper.host	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-08-31T02:03:56.738	2019-08-31T01:03:56	2019-11-29T01:03:56	*.kb.hyper.host	*.kb.hyper.host	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-07-01T18:38:51.779	2019-07-01T17:38:50	2019-09-29T17:38:50	*.kb.hyper.host	*.kb.hyper.host	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-07-01T18:38:51.779	2019-07-01T17:38:50	2019-09-29T17:38:50	*.kb.hyper.host	*.kb.hyper.host	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-07-01T18:38:50.765	2019-07-01T17:38:50	2019-09-29T17:38:50	*.kb.hyper.host	*.kb.hyper.host	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-07-01T18:38:50.765	2019-07-01T17:38:50	2019-09-29T17:38:50	*.kb.hyper.host	*.kb.hyper.host	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3