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

Results for*.mailin.restructured.com.au

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2026-01-16T10:41:15.582	2026-01-16T09:42:44	2026-04-16T09:42:43	opeanresultancete.info	*.mailin.restructured.com.au	C=US, O=Let's Encrypt, CN=R12
2026-01-16T10:41:15.582	2026-01-16T09:42:44	2026-04-16T09:42:43	opeanresultancete.info	*.mailin.restructured.com.au	C=US, O=Let's Encrypt, CN=R12
2026-01-16T10:41:15.185	2026-01-16T09:42:44	2026-04-16T09:42:43	opeanresultancete.info	*.mailin.restructured.com.au	C=US, O=Let's Encrypt, CN=R12
2026-01-16T10:41:15.185	2026-01-16T09:42:44	2026-04-16T09:42:43	opeanresultancete.info	*.mailin.restructured.com.au	C=US, O=Let's Encrypt, CN=R12
2026-01-16T04:13:12.933	2026-01-16T03:14:41	2026-04-16T03:14:40	selectiveheadlinestoobservetoday.info	*.mailin.restructured.com.au	C=US, O=Let's Encrypt, CN=R13
2026-01-16T04:13:12.933	2026-01-16T03:14:41	2026-04-16T03:14:40	selectiveheadlinestoobservetoday.info	*.mailin.restructured.com.au	C=US, O=Let's Encrypt, CN=R13
2026-01-16T04:13:11.764	2026-01-16T03:14:41	2026-04-16T03:14:40	selectiveheadlinestoobservetoday.info	*.mailin.restructured.com.au	C=US, O=Let's Encrypt, CN=R13
2026-01-16T04:13:11.764	2026-01-16T03:14:41	2026-04-16T03:14:40	selectiveheadlinestoobservetoday.info	*.mailin.restructured.com.au	C=US, O=Let's Encrypt, CN=R13