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Security report for hier-ist-zuhause.de

Vonovia SE · Real Estate · Germany

Medium risk. 3 critical or high findings in Email security and SSL/TLS.

Security score

62/100

Risk levelMedium

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

Vonovia SE operates the website hier-ist-zuhause.de, which promotes a contest themed around reasons to love home. As a leading real estate company in Germany, Vonovia provides property management and housing services targeting residents and tenants. The website reflects a professional corporate identity with consistent branding and a focus on tenant engagement. Technically, the site uses modern infrastructure including Azure DNS and Cookiebot for cookie consent management, ensuring GDPR compliance and user privacy. Security posture is strong with HTTPS and no visible vulnerabilities, though explicit security and incident response policies are not published. Overall, the site is well-structured, mobile-optimized, and trustworthy, serving an enterprise-level audience in the real estate sector.

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

3 findings rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

  2. 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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

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

Keep watching hier-ist-zuhause.de

This scan found 16 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
0
Security headers
85
Email security
40
DNS health
60
Network security
100
GDPR outside view
88
Average
62

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 hier-ist-zuhause.de, from OffSeq Breach.

No leaked records found

Breach holds no records for hier-ist-zuhause.de right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

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

Business context

Business profile

Vonovia SE holds a strong market position in the German real estate sector, operating multiple related domains and subsidiaries. The business model centers on property management and tenant services, with digital presence supporting marketing and engagement initiatives. The website ecosystem includes job portals, social foundations, and investor relations sites, indicating a mature and diversified corporate structure. Vonovia leverages third-party tools like Cookiebot and Google for analytics and marketing, maintaining compliance with privacy regulations. The company targets a broad residential audience, focusing on brand trust and tenant satisfaction.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, use of cookie consent mechanisms, and no exposed sensitive data. However, the absence of published security policies and incident response contacts suggests room for improvement in transparency and readiness. No WAF or blocking mechanisms were detected, and no vulnerable libraries or security flaws were visible in the HTML content. The site follows GDPR requirements effectively through Cookiebot integration. Recommendations include publishing explicit security and incident response policies and enhancing security headers to further harden the site.

Recommendations

  1. Publish a dedicated security policy page detailing security practices and controls.
  2. Add clear incident response contact information such as security@ or abuse@ email addresses.
  3. Implement additional HTTP security headers like Content-Security-Policy and Strict-Transport-Security.
  4. Enhance accessibility features to improve compliance and user experience for all users.
  5. Publish terms of service to clarify legal terms and user obligations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Vonovia SE
Description
Website promoting a contest themed '1848 reasons why we love home', operated by Vonovia SE, a major real estate company.
Key services
Property management, Housing services, Tenant engagement
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Cookiebot, Azure DNS, HTML5, CSS3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with granular controls
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google
Tracking pixels
Cookiebot
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 cookie consent management with detailed cookie categorization.
  2. Multiple related domains and subsidiaries are linked, showing a broad corporate ecosystem.
  3. No contact emails or phone numbers explicitly found in the provided HTML snippet.
  4. No explicit privacy policy URL found but implied via cookie consent and privacy references.
  5. No terms of service or security policy pages detected in the content.
  6. Website is in German language targeting German audience.
  7. No signs of WAF or content blocking.
  8. Good use of HTTPS and modern DNS infrastructure (Azure).
Technical notes

Notes

The website is hosted on Microsoft Azure infrastructure, using Azure DNS nameservers. It employs Cookiebot for cookie consent and tracking management, integrating Google services for analytics and advertising. The HTML is well-structured with proper meta tags for SEO and social sharing (Open Graph). Performance is moderate with asynchronous loading of scripts. Mobile optimization is good, though accessibility is basic. No CMS was explicitly detected. The site uses standard web technologies including HTML5, CSS3, and JavaScript. Technical risks are minimal, but improvements in security headers and accessibility could enhance robustness.
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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