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Security report for deutsche-wohnen.com

Deutsche Wohnen · Real Estate · Germany

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

Security score

83/100

Risk levelLow

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

Deutsche Wohnen is a major real estate company operating primarily in Berlin, Germany, focusing on residential property rental and management. The company positions itself as one of the largest landlords in Berlin, providing livable neighborhoods and urgently needed housing. The website reflects a professional and consistent brand image with a clear focus on its core business. Technically, the site uses modern web technologies including JavaScript, Cookiebot for cookie consent management, and Econda for analytics. The site is mobile-optimized and uses HTTPS, ensuring secure communication. Security posture is good with HTTPS enforced and cookie consent implemented, but lacks explicit security headers and published security policies. Privacy compliance is moderate with a cookie banner present but no explicit privacy policy or terms of service detected in the provided content. The domain WHOIS data is unavailable, which raises some concerns about domain registration transparency, but the website content and branding suggest a legitimate business. Overall, the site is professional and trustworthy with room for improvement in security transparency and privacy documentation.

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

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Keep watching deutsche-wohnen.com

This scan found 15 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
72
Security headers
85
Email security
68
DNS health
85
Network security
100
GDPR outside view
88
Average
83

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention deutsche-wohnen.com, from OffSeq Breach.

Total records
374
Employees
0
Customers
374
Third parties
0
Weak passwords
5%

9 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for deutsche-wohnen.com.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Deutsche Wohnen operates in the real estate sector, targeting residential tenants and property investors in Germany, especially Berlin. The business model centers on property rental and management, with a strong market position as a leading landlord. The company appears to be part of or closely affiliated with the Vonovia group, as indicated by multiple linked domains and shared cookie consent domains. The website does not disclose detailed company founding or registration data but demonstrates a mature digital presence with integrated analytics and cookie management. The partnership ecosystem includes several Vonovia-related domains, suggesting strategic alliances or group structure. The company’s growth indicators and revenue streams are not explicitly detailed on the site, but the scale and branding imply a large enterprise with significant market share.

Security posture

The website enforces HTTPS, which is a critical security baseline. Cookie consent is managed via Cookiebot, indicating attention to GDPR compliance and user privacy. However, the site lacks visible security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options, which are recommended to mitigate common web vulnerabilities. No incident response or vulnerability disclosure information is published, which limits transparency and readiness perception. No exposed sensitive data or vulnerable libraries were detected in the provided content. The absence of WHOIS data reduces confidence in domain legitimacy, though the website content itself does not show signs of compromise. Overall, the security posture is good but could be enhanced by publishing security policies, adding security headers, and providing incident response contacts.

Recommendations

  1. Implement and publish a comprehensive privacy policy and terms of service pages to improve transparency and compliance.
  2. Add standard security headers (Content-Security-Policy, X-Content-Type-Options, X-Frame-Options) to enhance protection against common web attacks.
  3. Publish a security policy or security.txt file including incident response contact information to improve trust and readiness.
  4. Improve accessibility features to meet higher standards and enhance user experience for all visitors.
  5. Clarify domain registration details or ensure WHOIS data is publicly available to improve domain legitimacy and trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Deutsche Wohnen
Description
Als einer der größten Vermieter Berlins schaffen wir für unsere Kund:innen lebenswerte Quartiere und stellen dringend benötigte Wohnungen zur Verfügung.
Key services
Residential property rental, Property management, Development of livable neighborhoods
Content quality
good
Branding
consistent

Technology

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

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented

Analytics and tracking

Services
Econda
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google
Tracking pixels
Cookiebot
Marketing tools
Econda
Transparency
good

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 challenge.
  2. WHOIS data is unavailable or domain may not be properly registered under the queried name.
  3. Cookie consent mechanism is implemented with detailed cookie categorization.
  4. No explicit privacy policy or terms of service pages detected in the provided content.
  5. No direct contact information such as emails or phone numbers found in the HTML content.
  6. Website uses HTTPS and modern cookie consent technology.
  7. Multiple related domains linked, mostly associated with Vonovia group, indicating possible business relationship or partnership.
  8. No security.txt or vulnerability disclosure information found.
  9. No data protection officer contact information found.
  10. No social media links explicitly found in the provided HTML snippet.
Technical notes

Notes

The website uses modern JavaScript frameworks and integrates Cookiebot for cookie consent management and Econda for analytics, indicating a mature technical infrastructure. The site is mobile-optimized and uses responsive design principles. Performance is moderate, with asynchronous loading of scripts to improve page load times. No CMS or hosting provider information was explicitly detected. The site uses HTTPS with a good SSL configuration. There is no evidence of technical debt or outdated libraries in the provided content. Opportunities exist to enhance security headers and improve accessibility compliance. The technical stack supports the business needs effectively but could benefit from additional security and privacy enhancements.
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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