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Security report for vonovia-sozialstiftung.de

Vonovia SE · Real Estate · Germany

Low risk. 1 critical or high finding in SSL/TLS.

Security score

79/100

Risk levelLow

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

Vonovia Sozialstiftung is a social foundation affiliated with Vonovia SE, a leading real estate company in Germany. The foundation focuses on providing social support and assistance to tenants, fostering community engagement and social welfare. The website is professionally designed with consistent branding aligned to Vonovia, targeting tenants and social stakeholders. The technical infrastructure leverages Microsoft Azure DNS and Cookiebot for GDPR-compliant cookie management, indicating a mature digital presence. Security posture is solid with HTTPS enforced and cookie consent mechanisms in place, though there is room for improvement in security headers and explicit privacy policy visibility. Overall, the website is trustworthy, safe, and compliant with basic privacy regulations, serving its non-profit social mission effectively.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

1 finding 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

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

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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
72
Security headers
85
Email security
70
DNS health
60
Network security
100
GDPR outside view
88
Average
79

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 foundation operates within the real estate and non-profit sectors, leveraging the strong market position of Vonovia SE. Its business model centers on social support rather than commercial revenue, targeting tenants and community members. The website links to multiple Vonovia group domains and partners, indicating a well-integrated partnership ecosystem. The use of advanced cookie consent tools and analytics reflects a commitment to compliance and user experience. Growth indicators include digital maturity and alignment with GDPR standards, though explicit contact and policy disclosures could be enhanced to improve transparency.

Security posture

The website demonstrates a moderate to good security maturity level with HTTPS and cookie consent mechanisms. However, it lacks visible security headers and explicit incident response or vulnerability disclosure information. No critical vulnerabilities or exposed sensitive data were detected. Compliance with GDPR is supported by Cookiebot, but the absence of a clear privacy policy and security contact points suggests gaps in transparency and incident readiness. The security culture appears cautious but could benefit from formalized policies and public disclosures.

Recommendations

  1. Implement comprehensive security headers such as Content-Security-Policy and X-Frame-Options to enhance protection.
  2. Publish clear and accessible privacy policy and terms of service pages to improve compliance and user trust.
  3. Add explicit contact information for data protection officer and incident response to support transparency and readiness.
  4. Conduct regular audits of third-party scripts and cookies to minimize privacy and security risks.
  5. Enhance accessibility features to meet compliance standards and improve user experience for all visitors.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Vonovia SE
Description
Vonovia Sozialstiftung is a social foundation motivated to help tenants of Vonovia. It focuses on social support and community engagement.
Key services
Social support, Tenant assistance, Community projects
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Cookiebot, Azure DNS, Econda analytics
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with granular controls

Analytics and tracking

Services
Econda, Google Analytics (inferred)
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google
Tracking pixels
Cookiebot, Google, YouTube
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 Cookiebot for GDPR-compliant cookie consent management.
  2. No explicit privacy policy or terms of service pages detected in the provided content.
  3. No contact emails or phone numbers explicitly found in the HTML content.
  4. Website content is in German and targets tenants and social community related to Vonovia.
  5. Multiple external domains related to Vonovia group and partners are linked.
  6. No security.txt or vulnerability disclosure page found.
  7. No explicit data protection officer contact found.
  8. Website uses HTTPS and Azure DNS hosting.
  9. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website uses modern web technologies including JavaScript and Cookiebot for cookie management, hosted on Microsoft Azure infrastructure as indicated by DNS and cookies. Performance is moderate with good mobile optimization and basic SEO practices. The absence of a detected CMS suggests a custom or proprietary platform. The technical stack is adequate for the site's purpose but could be improved with enhanced accessibility and SEO optimizations. No major technical debt or risks were identified, but security enhancements are 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

Earlier scans of this domain

  1. 79/100Low27 findingsView report
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