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Security report for christian-schad-museum.de

Museen der Stadt Aschaffenburg · Other · Germany

High risk. 9 critical or high findings in GDPR outside view, Security headers and 3 other checks.

Security score

41/100

Risk levelHigh

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

The website represents the Museen der Stadt Aschaffenburg, a municipal cultural institution in Germany offering a range of museums including the Christian Schad Museum. It provides comprehensive cultural and educational services with a strong focus on art history and local heritage. The museum is uniquely positioned as the only location worldwide presenting all periods of Christian Schad's work. The site targets a broad audience including local visitors, tourists, and art enthusiasts. Technically, the website uses standard web technologies including HTML5, CSS3, JavaScript with jQuery and Modernizr, and includes accessibility and SEO best practices. The site is multilingual and includes a newsletter subscription service. Security posture is moderate with HTTPS implied, but lacks explicit security headers and incident response information. Privacy compliance is good with clear privacy and cookie policies, though no active cookie consent mechanism is present. Overall, the site is professional, trustworthy, and well-maintained, with room for security and privacy enhancements.

Scanned

NIS2 and GDPR posture

GDPR outside view
28/ 100 · High
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

9 findings rated critical or high. Fix these first.

  1. GDPR outside view

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

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  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';…

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

Keep watching christian-schad-museum.de

This scan found 29 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
62
Security headers
20
Email security
70
DNS health
45
Network security
20
GDPR outside view
28
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 Museen der Stadt Aschaffenburg operates as a public cultural institution under the City of Aschaffenburg, focusing on museum exhibitions, art collections, and cultural programming. Its unique market position is reinforced by exclusive presentation rights to Christian Schad's complete oeuvre. The business model is non-commercial, funded by municipal resources, targeting cultural education and tourism. Partnerships with related cultural sites and foundations enhance its ecosystem. The website supports engagement through newsletters and social media. Growth indicators include upcoming international exhibition projects and active program scheduling. The institution maintains a consistent brand and professional online presence, supporting its role as a key cultural player in the region.

Security posture

The website demonstrates a moderate security maturity level. HTTPS is enforced as indicated by canonical URLs, and no sensitive data is exposed in the HTML. Form inputs use client-side validation, but the use of an older jQuery version (1.12.4) may pose potential vulnerabilities. No security headers such as CSP, HSTS, or X-Frame-Options were detected, and no explicit security or incident response policies are published. The absence of a security.txt file or vulnerability disclosure channel limits transparency. Privacy policies are comprehensive and GDPR compliant, but cookie consent mechanisms are missing. Overall, the site is secure for general public use but would benefit from enhanced security controls and transparency to meet higher compliance standards.

Recommendations

  1. Implement and enforce security headers including Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), X-Frame-Options, and X-XSS-Protection.
  2. Upgrade JavaScript libraries, especially jQuery, to the latest secure versions to mitigate known vulnerabilities.
  3. Add a cookie consent banner/mechanism to comply fully with GDPR cookie regulations.
  4. Publish explicit security policies and incident response contact information to improve transparency and trust.
  5. Create and maintain a security.txt file to facilitate responsible vulnerability disclosure.

Contact details published on the site

Addresses
Legal name
Museen der Stadt Aschaffenburg
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Museen der Stadt Aschaffenburg
Description
Das Angebot der Aschaffenburger Museen reicht von der Naturkunde, Archäologie, Kunst des Mittelalters, der Renaissance und Barockzeit bis hin zur Industriegeschichte und berühmten Malern wie Ernst Ludwig Kirchner und Christian Schad. Weitere Höhepunkte sind der Stiftschatz und der Magdalenenaltar.
Key services
Museum exhibitions, Art collections, Cultural programs, Educational services, Newsletter
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, jQuery 1.12.4, Modernizr 2.6.1, Easybox lightbox
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced (implied by canonical URL https)
  • No exposed sensitive data in HTML
  • Form inputs with validation (jquery.validate.pack.js)

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Marketing tools
CleverReach (newsletter service)
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Content is rich, relevant, and professionally presented.
  3. Clear contact information and multiple communication channels available.
  4. No explicit security policies or incident response information found.
  5. No security.txt or vulnerability disclosure found.
  6. No explicit cookie consent mechanism despite cookie policy presence.
  7. Uses older jQuery version (1.12.4) which may have vulnerabilities.
  8. No visible analytics or tracking scripts detected except newsletter service.
  9. Social media presence on Facebook and Instagram.
  10. Website is multilingual with German and English options.
Technical notes

Notes

The website is built on a traditional web stack using HTML5, CSS3, and JavaScript with jQuery and Modernizr for feature detection. It uses Easybox for image lightbox functionality and jquery.validate for form validation. The site is responsive and includes accessibility features such as ARIA labels and keyboard navigation support. SEO is supported by meta tags and canonical URLs. Performance is moderate, with some potential for optimization. The site does not appear to use a modern CMS or framework, which may limit scalability and ease of updates. Hosting details are not explicit but nameservers indicate professional media service providers. Overall, the technical implementation is solid but could benefit from modernization and enhanced security practices.
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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