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

Results forwww.mx.sendcloud.org

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2025-12-08T05:41:26.919	2025-12-08T00:00:00	2026-12-10T23:59:59	mx.sendcloud.org	www.mx.sendcloud.org	C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV R36
2025-12-08T05:41:26.388	2025-12-08T00:00:00	2026-12-10T23:59:59	mx.sendcloud.org	www.mx.sendcloud.org	C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV R36
2024-12-10T01:17:26.406	2024-12-10T00:00:00	2025-12-10T23:59:59	mx.sendcloud.org	www.mx.sendcloud.org	C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA
2024-12-10T01:17:25.543	2024-12-10T00:00:00	2025-12-10T23:59:59	mx.sendcloud.org	www.mx.sendcloud.org	C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA