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

Results forbioptimisers.com.crypthood.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2025-03-01T04:04:35.029	2025-03-01T03:06:02	2025-05-30T03:06:01	bioptimisers.com.crypthood.com	bioptimisers.com.crypthood.com	C=US, O=Let's Encrypt, CN=R11
2025-03-01T04:04:32.853	2025-03-01T03:06:02	2025-05-30T03:06:01	bioptimisers.com.crypthood.com	bioptimisers.com.crypthood.com	C=US, O=Let's Encrypt, CN=R11
2020-12-31T06:21:42.311	2020-12-31T05:21:41	2021-03-31T05:21:41	bioptimisers.com.crypthood.com	bioptimisers.com.crypthood.com	C=US, O=Let's Encrypt, CN=R3
2020-12-31T06:21:41.805	2020-12-31T05:21:41	2021-03-31T05:21:41	bioptimisers.com.crypthood.com	bioptimisers.com.crypthood.com	C=US, O=Let's Encrypt, CN=R3