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Security report for bauverein-rheinhausen.de

Bauverein Rheinhausen eG · Real Estate · Germany

Medium risk. 5 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

67/100

Risk levelMedium

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

Bauverein Rheinhausen eG is a well-established German housing cooperative founded in 1919, providing residential and commercial rental services primarily in Duisburg and surrounding areas. The cooperative manages a portfolio including approximately 3,300 households, commercial units, and parking facilities, focusing on sustainable development, modernization, and community-oriented living spaces. The website reflects a professional digital presence with clear navigation, comprehensive service offerings, and active communication channels including social media and a members' newsletter. Technically, the site is built on WordPress with modern plugins and frameworks, optimized for accessibility and SEO, and includes GDPR-compliant cookie consent mechanisms. Security posture is solid with HTTPS enforced and no visible vulnerabilities, though formal security policies and incident response contacts are not publicly disclosed. Overall, the site demonstrates a mature digital infrastructure supporting the cooperative's business goals and community engagement.

Scanned

NIS2 and GDPR posture

GDPR outside view
43/ 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

5 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 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. 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 bauverein-rheinhausen.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.

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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
77
Security headers
50
Email security
70
DNS health
60
Network security
100
GDPR outside view
43
Average
67

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 cooperative holds a strong market position in the regional real estate sector with a focus on affordable housing and sustainable urban development. Its business model centers on member services, property management, and new construction projects. The presence of trust indicators such as membership in VdW Rheinland Westfalen and over a century of operation enhances credibility. The cooperative targets local residents and members seeking quality housing solutions. The website supports lead generation through property search forms and provides transparent communication of news and updates, indicating a customer-centric approach. Partnerships with regional organizations and digital marketing tools like Yoast SEO suggest strategic efforts to maintain visibility and engagement.

Security posture

The website employs HTTPS with a valid SSL certificate, uses cookie consent management via Borlabs Cookie, and avoids exposing sensitive information in the HTML source. Security best practices include the use of reputable WordPress plugins and no detected vulnerable libraries. However, the absence of explicit security policies, incident response contacts, and security headers indicates room for improvement in formalizing security governance and incident management. No signs of malware, phishing, or other security threats were found. The overall security maturity is good but could be enhanced by publishing dedicated security documentation and implementing additional HTTP security headers.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Provide clear incident response contact information such as security@ or abuse@ email addresses.
  3. Implement HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Regularly review and update WordPress plugins to mitigate potential vulnerabilities.
  5. Consider adding a vulnerability disclosure policy or security.txt file to encourage responsible reporting.

Contact details published on the site

Addresses
Legal name
Bauverein Rheinhausen eG
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Bauverein Rheinhausen eG
Description
Wohnungsgenossenschaft mit über 100 Jahren Erfahrung in Vermietung und Entwicklung von Wohn- und Gewerbeflächen. Rund 3,300 Haushalte werden betreut in Rheinhausen, Moers-Asberg und Schwafheim. Fokus auf nachhaltige Bestandsentwicklung, Modernisierung, Neubau und Schaffung lebenswerter Quartiere. Bestand umfasst ca. 88 gewerbliche Einheiten und 1,000 Garagen/Stellplätze.
Key services
Vermietung von Wohnungen und Gewerbeflächen, Bestandsbewirtschaftung, Neubauprojekte, Mitgliederzeitung, Reparaturservice
Content quality
good
Branding
consistent

Technology

Stack
WordPress, PHP, jQuery, Bootstrap 3, noUiSlider, Galleria, Swiper, FontAwesome, Borlabs Cookie Plugin, Contact Form 7, Yoast SEO
Frameworks
Bootstrap 3
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with granular controls
  • No exposed sensitive data in HTML
  • Use of security plugins (Borlabs Cookie)

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Marketing tools
Yoast SEO
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professionally presented in German language targeting local audience.
  3. Strong compliance with GDPR via cookie consent and privacy policy.
  4. No visible security vulnerabilities or exposed sensitive data.
  5. Use of modern web technologies and WordPress plugins.
  6. Clear contact information and multiple communication channels provided.
  7. Social media presence on Instagram, LinkedIn, and YouTube.
  8. No terms of service or explicit security policy pages found.
  9. No incident response or vulnerability disclosure information publicly available.
Technical notes

Notes

The website is built on a WordPress CMS platform using Bootstrap 3 for responsive design, jQuery for interactivity, and several specialized plugins such as Contact Form 7 for forms and Borlabs Cookie for GDPR compliance. The site loads multiple CSS and JS assets efficiently and includes accessibility features and SEO optimizations via Yoast SEO. Performance is moderate with room for optimization, but mobile responsiveness and user experience are good. The technical stack is modern and well-maintained, supporting the cooperative's digital needs effectively. No critical technical debt or risks were identified, though ongoing maintenance of third-party components is recommended.
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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