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Security report for adlershorst.de

ADLERSHORST Baugenossenschaft eG · Real Estate · Germany

High risk. 11 critical or high findings in GDPR outside view, Network security and 2 other checks.

Security score

41/100

Risk levelHigh

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

ADLERSHORST Baugenossenschaft eG operates as a large regional housing cooperative in the northwest of the Hamburg metropolitan area, managing over 5,600 residential units and serving more than 9,200 members. The company focuses on providing rental housing, new construction projects, property management, and investment opportunities, targeting tenants, prospective tenants, property owners, investors, and cooperative members. Their market position is strong within their regional niche, supported by a comprehensive digital presence and member engagement through reports and social media. Technically, the website is built on TYPO3 CMS with modern JavaScript libraries such as jQuery and Slick Slider, delivering a responsive and well-structured user experience. Hosting appears to be managed by a German provider (WTNet), ensuring good performance and regional compliance. The site implements HTTPS and cookie consent mechanisms, reflecting GDPR awareness and privacy compliance. From a security perspective, the site enforces HTTPS and uses cookie consent banners but lacks explicit security policies, incident response contacts, and vulnerability disclosure mechanisms. No critical vulnerabilities or exposed sensitive data were detected. The WHOIS data and DNS configuration are consistent with a legitimate business entity, enhancing trustworthiness. Overall, the website presents a professional, secure, and privacy-conscious digital front for ADLERSHORST Baugenossenschaft eG, with room for improvement in formal security documentation and transparency. The risk profile is low, with no signs of malicious activity or content safety concerns.

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

11 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: SMB

      Port 445 (SMB) is publicly accessible - SMB - Windows file sharing, high risk

      What to do: Immediately restrict access to SMB 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: 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

  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 adlershorst.de

This scan found 34 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

€25per month

  • 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
25
Email security
55
DNS health
65
Network security
0
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 · 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

ADLERSHORST Baugenossenschaft eG is positioned as a key player in the regional real estate cooperative sector, leveraging its large housing stock and member base to maintain market relevance. Its business model centers on cooperative housing provision, property management, and investment projects, appealing to a broad audience including tenants, seniors, investors, and cooperative members. The company benefits from strategic partnerships, such as with adlershorst-immobilien.de for real estate services and a marketing agency for digital presence. Growth indicators include active new construction projects and member engagement via published reports. The cooperative structure supports community trust and long-term stability, while digital maturity is evidenced by a modern CMS and GDPR-compliant features.

Security posture

The website demonstrates a moderate to strong security posture with enforced HTTPS and cookie consent mechanisms aligned with GDPR. However, it lacks published security policies, incident response contacts, and vulnerability disclosure channels, which are important for transparency and trust. No security headers were detected in the HTML content, suggesting an opportunity to enhance protection against common web attacks. The absence of exposed sensitive data and use of reputable hosting contribute positively. Overall, the security maturity is adequate for the business type but could be improved by formalizing security governance and communication.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Implement and publicize a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  3. Add explicit incident response contact channels such as security@ or abuse@ email addresses.
  4. Enhance HTTP security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  5. Conduct regular audits of third-party libraries and dependencies to mitigate potential vulnerabilities.

Contact details published on the site

Addresses
Legal name
ADLERSHORST Baugenossenschaft eG
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ADLERSHORST Baugenossenschaft eG
Description
Die ADLERSHORST Baugenossenschaft eG ist ein Wohnungsunternehmen mit rund 5.200 Wohnungen im Nordwesten der Metropolregion Hamburg.
Key services
Wohnungsvermietung, Neubauprojekte, Immobilienverwaltung, Investitionsprojekte, Mieter- und Mitgliederservices
Content quality
good
Branding
consistent

Technology

Stack
TYPO3 CMS, jQuery 3.6.1, Slick Slider, Modernizr
Frameworks
TYPO3 CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented
  • No exposed sensitive data in HTML

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 no blocking or WAF challenges.
  2. Content is professional, relevant, and well-structured for a real estate cooperative.
  3. Cookie consent mechanism is implemented and GDPR compliance is evident.
  4. No explicit security policy or incident response information is published.
  5. No visible tracking or advertising networks detected.
  6. Social media presence on Facebook and Instagram is active.
  7. WHOIS data is minimal but consistent with the website's business nature.
Technical notes

Notes

The website is built on TYPO3 CMS, a mature and extensible content management system, supported by modern JavaScript libraries like jQuery and Slick Slider for interactive elements. The site is hosted on a German provider (WTNet), ensuring regional compliance and likely good latency for the target audience. Performance is moderate with gzip compressed CSS and JS assets. Mobile optimization is good with responsive design and viewport meta tags. SEO is supported by proper meta descriptions and canonical links. Accessibility is basic but present. There is no evidence of technical debt or deprecated technologies, though security headers could be improved. Overall, the technical infrastructure is solid and appropriate for the business scale.
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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