aethercert

cloud.slk-kliniken.de

Scanned 7 days ago · Oct 23, 2026, 9:28 PM

A-

TLS & Certificate

Protocol support, cipher strength and the certificate chain, evaluated the way a browser would.

Score85%
  • the server accepts 4 weak cipher suite(s): ECDHE-RSA-AES256-SHA384, ECDHE-RSA-AES128-SHA256, AES256-GCM-SHA384, AES128-GCM-SHA256
  • the HSTS max-age is shorter than 6 months
NegotiatedTLSv1.3, TLS_AES_256_GCM_SHA384
Forward secrecyYes
HSTSenabled, max-age=15552000

Protocol baseline

YesTLS 1.3 enabled
YesTLS 1.2 enabled
YesTLS 1.1 disabled
YesTLS 1.0 disabled

Cipher suites probed

Each suite below was tested with its own TLS 1.2 handshake, restricted to exactly that cipher - "accepted" means the server completed a handshake using it, not merely that it's listed as a possibility.

ECDHE-ECDSA-AES256-GCM-SHA384
SecureNot offered
ECDHE-RSA-AES256-GCM-SHA384
SecureAccepted
ECDHE-ECDSA-AES128-GCM-SHA256
SecureNot offered
ECDHE-RSA-AES128-GCM-SHA256
SecureAccepted
ECDHE-ECDSA-CHACHA20-POLY1305
SecureNot offered
ECDHE-RSA-CHACHA20-POLY1305
SecureAccepted
DHE-RSA-AES256-GCM-SHA384
SecureNot offered
DHE-RSA-AES128-GCM-SHA256
SecureNot offered
ECDHE-RSA-AES256-SHA384
WeakAccepted
ECDHE-RSA-AES128-SHA256
WeakAccepted
AES256-GCM-SHA384
WeakAccepted
AES128-GCM-SHA256
WeakAccepted
DES-CBC3-SHA
InsecureNot offered
RC4-SHA
InsecureNot offered
NULL-SHA
InsecureNot offered

Certificate

Subject*.slk-kliniken.de
IssuerSectigo Public Server Authentication CA DV R36
Additional names*.slk-kliniken.de, slk-kliniken.de
ValidFeb 2, 2026, 12:00 AM – Mar 5, 2027, 11:59 PM (expires in 133 days)
KeyRSA 4096 bit
Signature algorithmunknown
SHA-256 fingerprintF1:CF:D9:9E:61:D8:3A:52:11:EB:BE:05:45:EF:5E:AC:A0:21:EA:79:55:96:75:7D:BA:37:4E:28:5A:B7:4B:30
Certificate chain3 certificate(s)
Trusted by common trust storesYes
Matches the scanned hostnameYes
Self-signedNo
B

Security Headers

The HTTP response headers browsers use to restrict what a page - or an attacker inside it - can do.

Score75%
  • no Permissions-Policy header
  • no Cross-Origin-Opener-Policy header
  • no Cross-Origin-Resource-Policy header
  • the Server header discloses "nginx"
Content-Security-Policydefault-src 'none';base-uri 'none';manifest-src 'self';script-src 'nonce-VfHVRDTfcJa/7GhXlIatmgGtI1VScfGzsorW7JztS6g=';script-src-elem 'strict-dynamic' 'nonce-VfHVRDTfcJa/7GhXlIatmgGtI1VScfGzsorW7JztS6g=';style-src 'self' 'unsafe-inline';img-src 'self' data: blob: https://*.tile.openstreetmap.org https://cloud-cool.slk-kliniken.de;font-src 'self' data:;connect-src 'self' wss://cloud.slk-kliniken.de;media-src 'self';frame-src 'self' nc: https://cloud-cool.slk-kliniken.de;frame-ancestors 'self' https://cloud-cool.slk-kliniken.de;form-action 'self' https://cloud-cool.slk-kliniken.de
Strict-Transport-Securitymax-age=15552000; includeSubDomains
X-Content-Type-Optionsnosniff
X-Frame-OptionsSAMEORIGIN
Referrer-Policyno-referrer
Permissions-Policynot set
Cross-Origin-Opener-Policynot set
Cross-Origin-Resource-Policynot set
Cookiesoc_sessionPassphrase (Secure, HttpOnly); __Host-nc_sameSiteCookielax (Secure, HttpOnly); __Host-nc_sameSiteCookiestrict (Secure, HttpOnly); oc40vdoude9g (Secure, HttpOnly)
–

Email

Whether mail delivered to this domain is protected in transit, and whether SPF/DMARC stop it being spoofed.

Scoren/a
  • no mail servers (MX records) found for this domain