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Security report for denkmalschutz.de

Deutsche Stiftung Denkmalschutz · Non-profit · Germany

High risk. 9 critical or high findings in GDPR outside view, Network security and 2 other checks.

Security score

49/100

Risk levelHigh

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

The Deutsche Stiftung Denkmalschutz website represents a well-established non-profit organization dedicated to the preservation of cultural heritage and monuments in Germany. The site provides comprehensive information about their mission, projects, events, and donation opportunities, positioning them as the largest private initiative in their sector. The website is built on TYPO3 CMS, featuring modern design elements and good mobile optimization, reflecting a mature digital presence. Security posture is solid with HTTPS and secure forms, though there is room for improvement in security headers and cookie consent mechanisms. Overall, the site demonstrates high professionalism and trustworthiness, supported by recognized donation seals and transparent reporting.

Scanned

NIS2 and GDPR posture

GDPR outside view
55/ 100 · Medium
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

  2. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
    • Critical

      Critical Service Exposed: PostgreSQL

      Port 5432 (PostgreSQL) is publicly accessible - PostgreSQL - Database server

      What to do: Immediately restrict access to PostgreSQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  3. 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"

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

Keep watching denkmalschutz.de

This scan found 25 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
82
Security headers
30
Email security
70
DNS health
60
Network security
0
GDPR outside view
55
Average
50
After the cap
49

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 · found on this site
  • 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 organization operates in the non-profit sector focusing on monument preservation, targeting donors, cultural enthusiasts, and professionals in heritage conservation. Their business model relies on donations and project funding, with a strong emphasis on transparency and community engagement. The website's content and structure support their mission effectively, showcasing events, educational programs, and active projects. The lack of explicit contact details on the analyzed page suggests contact information may be centralized elsewhere, which is common for large non-profits. Their market position as the largest private initiative in Germany for monument preservation is reinforced by their extensive project portfolio and public trust indicators.

Security posture

The website employs HTTPS and secure form handling, minimizing exposure of sensitive data. However, security headers such as Content-Security-Policy and X-Frame-Options are not evident, which could enhance protection against common web attacks. No vulnerabilities or outdated libraries were detected in the provided content. The absence of a published security policy or incident response contacts indicates an area for improvement in transparency and readiness. Overall, the security posture is good but could be strengthened with additional headers and explicit security documentation.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Add a cookie consent banner to comply fully with GDPR requirements and enhance user privacy transparency.
  3. Publish a dedicated security policy and incident response contact information to improve trust and preparedness.
  4. Ensure visible and accessible contact information for users seeking support or inquiries.
  5. Regularly audit third-party scripts and libraries to maintain security and performance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Deutsche Stiftung Denkmalschutz
Description
Die Deutsche Stiftung Denkmalschutz ist die größte private Initiative für Denkmalpflege in Deutschland, die sich bundesweit und unabhängig für den Erhalt bedrohter Baudenkmale aller Arten einsetzt. Sie verfolgt einen umfassenden Ansatz von Notfall-Rettung gefährdeter Denkmale, Jugendprojekten bis hin zum Tag des offenen Denkmals®.
Key services
Förderung von Sanierungsprojekten, Katastrophenhilfe für Denkmale, Jugendbauhütten und Bildungsangebote, Veranstaltungen und Ausstellungen, Informationsmaterial und Publikationen
Content quality
excellent
Branding
consistent

Technology

Stack
TYPO3 CMS, CSS, JavaScript, Swiper.js (slider library)
Frameworks
TYPO3 CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Secure forms with POST method
  • No visible vulnerable libraries

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking detected.
  2. Strong focus on monument preservation and cultural heritage.
  3. Good use of TYPO3 CMS with modern UI elements like sliders.
  4. No visible tracking or advertising networks detected.
  5. No explicit contact emails or phone numbers found in the provided HTML snippet.
  6. Multiple donation forms present with secure input handling.
  7. No explicit cookie consent banner found, which may be a GDPR compliance gap.
  8. Security headers are minimal; opportunity for improvement.
  9. Trust seals and transparency pages enhance credibility.
Technical notes

Notes

The website is powered by TYPO3 CMS, a robust and widely used content management system, indicating a stable and scalable infrastructure. The use of Swiper.js for interactive sliders enhances user engagement. Hosting appears to be managed via 'your-server.de' with multiple authoritative nameservers, suggesting reliable DNS management. Performance is moderate with good mobile optimization and accessibility features. SEO practices are evident through meta tags and structured content. There is no indication of heavy tracking or advertising scripts, which aligns with the non-profit nature of the organization. Opportunities exist to modernize security headers and implement enhanced privacy controls.
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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