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Security report for dommuseum-frankfurt.de

Dommuseum Frankfurt · Government · Germany

High risk. 6 critical or high findings in SSL/TLS, Security headers and 2 other checks.

Security score

41/100

Risk levelHigh

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

Dommuseum Frankfurt is a cultural institution focused on exhibiting ecclesiastical art and historical artifacts related to the Frankfurt Cathedral. The website provides detailed information about exhibitions, guided tours, events, and publications, targeting museum visitors and cultural enthusiasts. The museum positions itself as a regional cultural landmark with a strong educational mission. Technically, the site is built on TYPO3 CMS with modern frontend libraries like jQuery and Bootstrap, offering a responsive and user-friendly experience. Security posture is adequate with HTTPS and cookie consent mechanisms, though security headers and explicit policies could be improved. Privacy compliance is strong with GDPR-aligned cookie management and a comprehensive privacy policy. Overall, the website is professional, trustworthy, and well-maintained, supporting the museum's mission effectively.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 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

6 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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  2. 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';…

  3. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

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

Keep watching dommuseum-frankfurt.de

This scan found 23 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.

Daily monitoring

Recommended

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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
0
Security headers
15
Email security
70
DNS health
60
Network security
20
GDPR outside view
80
Average
41

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

The museum operates primarily in the government/non-profit sector, focusing on cultural heritage and education. Its business model revolves around visitor engagement through exhibitions, tours, and events, supplemented by publications and audioguides. The website reflects a consistent brand and provides clear contact channels, enhancing credibility. The presence of a press area and detailed event calendar indicates active community engagement. Hosting is managed by a German provider, aligning with the museum's regional focus. No commercial advertising or affiliate marketing is detected, consistent with the institution's non-commercial nature.

Security posture

The website employs HTTPS and a cookie consent mechanism, indicating baseline security and privacy awareness. However, no explicit security headers were detected in the provided data, and there is no visible security or incident response policy. The login form exists but lacks visible advanced protections like CSRF tokens in the HTML snippet. No vulnerable libraries or exposed sensitive data were identified. The site would benefit from implementing security headers (CSP, HSTS) and publishing incident response information to enhance trust and resilience.

Recommendations

  1. Implement and verify HTTP security headers such as Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, and X-XSS-Protection.
  2. Add a dedicated security policy and incident response page to inform users and stakeholders.
  3. Ensure all forms, especially login forms, have CSRF protection and input validation.
  4. Regularly update TYPO3 CMS and third-party libraries to mitigate vulnerabilities.
  5. Enhance accessibility features to improve inclusivity and compliance.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Dommuseum Frankfurt
Description
Das Dommuseum Frankfurt zeigt kirchliche Schatzkunst, eine reiche Sammlung mittelalterlicher und barocker Messgewänder und bedeutende Exponate zum Frankfurter Kaiserdom von frühmittelalterlichen Grabungsfunden bis zu Zeugnissen seiner historistischen Neugestaltung im 19. Jahrhundert.
Key services
Museumsausstellungen, Führungen (Domführung, Turmführung, Orgel), Veranstaltungen und Workshops, Publikationen und Ausstellungskataloge, Audioguides
Content quality
good
Branding
consistent

Technology

Stack
TYPO3 CMS, jQuery, Bootstrap, Owl Carousel, Font Awesome
Frameworks
TYPO3 CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS usage
  • Cookie consent mechanism
  • Login form with password field

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with rich content about museum exhibitions and events.
  2. Uses TYPO3 CMS with modern frontend libraries.
  3. Includes GDPR-compliant cookie consent and privacy policy.
  4. Contact information is available via email, phone, and contact forms.
  5. No visible security policy or incident response information.
  6. No advertising or tracking beyond basic statistics cookies.
  7. No signs of adult or unsafe content.
  8. WHOIS data is minimal but consistent with the website's German cultural institution nature.
Technical notes

Notes

The website uses TYPO3 CMS, a robust and widely used content management system, combined with jQuery, Bootstrap, and Owl Carousel for frontend interactivity and responsive design. The site loads multiple CSS and JS assets, indicating a moderately complex frontend. Hosting is via web-vision.de, a German hosting provider, consistent with the museum's location. Performance is moderate with no explicit speed optimizations detected. SEO is supported by proper meta tags and structured data (schema.org ItemList and Article types). The site is mobile optimized and provides a clear navigation structure. Technical debt appears low, but security enhancements and performance tuning could improve overall quality.
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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