Qualys SSL Labs
Tests the certificate and the encryption of the connection on every server address.
A+
- Server address 2a01:4f8:c016:7e29:0:0:0:1 — A+
- Server address 2.28.107.0 — A+
- Encryption: TLS 1.2, TLS 1.3
- Secure connection enforced (HSTS)

Company
The security certificate of this website and the grades independent testing sites gave it.
Tests the certificate and the encryption of the connection on every server address.
A+
Tests the security settings the website sends with its pages.
A+
The grades are given by the testing sites themselves and checked again every week; each link opens the test's own report.