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Security report for bkk24.de

BKK24 · Healthcare · Germany

Medium risk. 2 critical or high findings in SSL/TLS.

Security score

66/100

Risk levelMedium

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

BKK24 operates as a statutory health insurance provider in Germany, offering a wide range of healthcare services with a focus on comprehensive coverage and customer support. The website positions itself as a reliable and accessible insurer with nationwide presence and 24/7 service availability. The business model centers on statutory health insurance, targeting insured individuals and employers within Germany. The website content is professionally presented, consistent with the healthcare industry standards, and compliant with GDPR regulations. Technically, the website is built on TYPO3 CMS, leveraging modern JavaScript libraries such as jQuery and Bootstrap for responsive design and user interaction. Cookiebot is integrated for cookie consent management, reflecting a mature approach to privacy compliance. Hosting is managed via kasserver.com, with secure HTTPS connections and moderate performance. SEO and accessibility are adequately addressed, though some improvements in accessibility could be beneficial. From a security perspective, the site enforces HTTPS and employs cookie consent mechanisms, but lacks explicit security headers like Content-Security-Policy and X-Frame-Options. No critical vulnerabilities or exposed sensitive data were detected. The absence of a public security policy or incident response contact suggests room for improvement in transparency and readiness. Analytics usage is moderate, primarily via self-hosted Matomo and etracker, with clear data retention policies. Overall, BKK24's website demonstrates a solid digital presence with good privacy and security practices aligned with its business sector. Strategic enhancements in security headers, incident response disclosure, and accessibility would further strengthen its posture. The site is trustworthy, professional, and suitable for its target audience.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 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

2 findings rated critical or high. Fix these first.

  1. 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
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching bkk24.de

This scan found 21 issues across 6 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
52
Security headers
85
Email security
65
DNS health
70
Network security
40
GDPR outside view
83
Average
66

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

Technical appendix

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

Business context

Business profile

BKK24 holds a stable position in the German statutory health insurance market, focusing on delivering extensive healthcare benefits and customer service. Its business model relies on statutory contributions and providing value-added services to insured members and employers. The website reflects a medium-sized enterprise with consistent branding and a clear focus on healthcare. The integration of Cookiebot and self-hosted analytics indicates a commitment to data privacy and compliance. The absence of visible partner or subsidiary domains suggests a focused operational scope. Growth indicators include digital service offerings and 24/7 support, positioning BKK24 competitively within the healthcare insurance sector.

Security posture

The website exhibits a moderate security maturity level with HTTPS enforced and cookie consent implemented via Cookiebot. However, the lack of explicit security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options represents a gap in defense-in-depth strategies. No vulnerabilities or exposed sensitive data were identified in the HTML content. The absence of a published security policy or incident response contact limits transparency and may hinder rapid response to security incidents. Analytics and tracking are conducted responsibly with clear retention policies. Overall, the security posture is adequate but could benefit from enhanced header configurations and public security disclosures.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web vulnerabilities.
  2. Publish a clear security policy and provide dedicated incident response contact channels to improve transparency and readiness.
  3. Conduct regular security audits to identify and remediate potential vulnerabilities, ensuring no sensitive data exposure.
  4. Enhance website accessibility features to comply with WCAG standards, improving user experience for all visitors.
  5. Maintain and update cookie consent and privacy mechanisms to stay aligned with evolving GDPR and ePrivacy regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
BKK24
Description
Die gesetzliche Krankenversicherung mit besonders vielen Leistungen. Mit bundesweiten Standorten und einem Rund-um-die-Uhr-Service sind wir für Sie da!
Key services
gesetzliche Krankenversicherung, Kundenservice rund um die Uhr, Leistungsangebote für Versicherte
Content quality
good
Branding
consistent

Technology

Stack
TYPO3 CMS, JavaScript, Cookiebot, Bootstrap, jQuery
Frameworks
TYPO3 CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Piwik Analytics / Matomo (self-hosted), etracker
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google
Tracking pixels
etracker
Marketing tools
Cookiebot
Transparency
good

Site quality

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

Key observations

  1. Website uses TYPO3 CMS with modern JavaScript libraries.
  2. Cookie consent is implemented with Cookiebot, showing GDPR compliance.
  3. No explicit contact emails or phone numbers found in the HTML snippet; contact forms and legal pages are present.
  4. No visible security.txt or vulnerability disclosure page.
  5. No signs of WAF or blocking mechanisms.
  6. Website content is professional and relevant to statutory health insurance in Germany.
  7. External domains mostly related to analytics, tracking, and embedded content providers.
  8. Good use of HTTPS and cookie consent mechanisms.
Technical notes

Notes

The website is built on TYPO3 CMS, a robust and widely used content management system, supported by JavaScript libraries including jQuery and Bootstrap for responsive design. Cookiebot integration ensures GDPR-compliant cookie management. Hosting is provided by kasserver.com, with domain nameservers confirming this setup. The site demonstrates moderate performance and good mobile optimization. SEO is supported by proper meta tags and Open Graph data. Accessibility is basic but could be improved. No deprecated or vulnerable libraries were detected in the provided HTML. Overall, the technical infrastructure is solid with opportunities for modernization in security headers and accessibility.
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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