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Security report for sana.de

Sana Kliniken AG · Healthcare · Germany

Medium risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

60/100

Risk levelMedium

0–100, higher is better. How it is calculated

Sana Kliniken AG is a major private healthcare provider in Germany, recognized as the third largest private clinic group in the country. The website presents comprehensive information about their integrated health services, sustainability initiatives, and patient care offerings. The digital infrastructure is built on TYPO3 CMS, supported by Google Tag Manager and a robust cookie consent management system, reflecting a mature technical setup. Security posture is solid with HTTPS and consent mechanisms, though some improvements in security headers and incident response transparency are recommended. Overall, the site is professional, trustworthy, and compliant with GDPR, serving a broad audience including patients and healthcare professionals.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 100 · Low
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

4 findings rated critical or high. Fix these first.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

Need hands-on remediation? Email guard@offseq.com

Keep watching sana.de

This scan found 23 issues across 5 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
72
Security headers
25
Email security
60
DNS health
65
Network security
40
GDPR outside view
100
Average
60

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention sana.de, from OffSeq Breach.

Total records
208
Employees
3
Customers
180
Third parties
25
Weak passwords
4%

Latest record dated 2026-05-20 · 10 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for sana.de.

Select it in the checkout above.

Masked preview

  • –daten.sana.de2026-05-20
  • –daten.sana.de2025-12-12
  • –daten.sana.de2025-07-27

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The company holds a strong market position in the German healthcare sector, focusing on hospital care, medical and nursing services, and prevention. Their business model is centered on private healthcare delivery with a large operational scale. The website supports their brand with consistent messaging and highlights sustainability efforts, which may enhance their competitive advantage. Social media engagement across multiple platforms indicates active outreach and marketing. The absence of explicit terms of service or vulnerability disclosure pages suggests areas for maturity growth in governance and transparency.

Security posture

The website employs HTTPS and a comprehensive cookie consent banner with granular user controls, indicating good privacy compliance. However, no explicit security policy or incident response contact details are published, which could hinder rapid response to security events. The use of third-party scripts like Google Tag Manager and Consentmanager.net is standard but requires ongoing monitoring for vulnerabilities. Security headers are not explicitly detected in the HTML content, representing an opportunity for enhancement. No vulnerabilities or exposed sensitive data were found in the analysis.

Recommendations

  1. Publish a dedicated security policy page outlining security frameworks and practices.
  2. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement and enforce security headers like Content-Security-Policy and X-Content-Type-Options.
  4. Regularly audit third-party scripts and dependencies for vulnerabilities and update accordingly.
  5. Enhance transparency by adding a vulnerability disclosure or security.txt file.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sana Kliniken AG
Description
Die Sana Kliniken AG ist als drittgrößte private Klinikgruppe Deutschlands einer der bedeutendsten Anbieter im Bereich integrierter Gesundheitsleistungen.
Key services
hospital care, medical and nursing services, prevention and individual care, international health services, medical centers and specialized centers
Content quality
excellent
Branding
consistent

Technology

Stack
TYPO3 CMS, Google Tag Manager, Consentmanager.net
Frameworks
TYPO3 CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • cookie consent with granular controls
  • no exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Consentmanager.net
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website uses TYPO3 CMS, a professional open-source CMS.
  2. Cookie consent banner with granular user controls is implemented.
  3. Social media presence on major platforms is active.
  4. No contact emails or phone numbers explicitly found in HTML; contact likely via contact form.
  5. No explicit terms of service page found.
  6. No security.txt or vulnerability disclosure page detected.
  7. Website content is in German with some English sections for international users.
  8. Sustainability and quality initiatives are highlighted.
  9. No signs of suspicious or malicious content.
Technical notes

Notes

The website is powered by TYPO3 CMS, a well-established open-source content management system, indicating a stable and scalable platform. Hosting appears to be managed by Deutsche Telekom, inferred from nameservers, suggesting reliable infrastructure. The site includes modern SEO and accessibility features, with responsive design for mobile devices. Performance is moderate, with room for optimization. The integration of Google Tag Manager and Consentmanager.net supports analytics and privacy compliance but requires careful management to avoid privacy risks. Overall, the technical implementation is solid with opportunities for security and performance improvements.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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