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Security report for baum-gruppe.com

BAUM Holding GmbH · Real Estate · Germany

Medium risk. 7 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

55/100

Risk levelMedium

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

The BAUM Unternehmensgruppe is a medium-sized real estate company based in Hannover, Germany, specializing in property acquisition, project development, property management, and rental services. They also operate in hospitality, gastronomy, and agriculture sectors. The company positions itself as a regional leader with a strong focus on northern Germany, particularly Hannover. Their website is professionally designed, content-rich, and well-structured, targeting investors, tenants, and real estate stakeholders. Technically, the site runs on WordPress with modern plugins and frameworks, including Bootstrap and accessibility tools, indicating a mature digital infrastructure. Security posture is good with HTTPS and cookie consent mechanisms, though some security headers and policies are missing. The absence of WHOIS registration data is a notable concern but does not detract from the overall professional presentation. Strategic recommendations include enhancing security policies and verifying domain registration details to improve trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 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

7 findings rated critical or high. Fix these first.

  1. 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"

    • 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';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  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 baum-gruppe.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
52
Security headers
20
Email security
80
DNS health
80
Network security
20
GDPR outside view
80
Average
55

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

BAUM Unternehmensgruppe operates primarily in the real estate sector with diversified interests in hospitality and agriculture. Their business model revolves around property lifecycle management from acquisition to rental and service. The company leverages regional expertise in Hannover and northern Germany, maintaining a strong local presence. Their digital ecosystem includes integrated property search tools and active social media engagement, supporting customer acquisition and retention. The company demonstrates compliance with GDPR and accessibility standards, reflecting a customer-centric approach. Growth indicators include recent acquisitions and participation in industry events. No direct partnerships or subsidiaries were identified from the website data.

Security posture

The website employs HTTPS and a cookie consent mechanism compliant with GDPR, indicating a baseline security and privacy posture. Accessibility features are robust, enhancing usability for diverse users. However, the absence of explicit security headers such as Content-Security-Policy and lack of published security or incident response policies suggest areas for improvement. No vulnerabilities or exposed sensitive data were detected in the analysis. The missing WHOIS data raises questions about domain registration legitimacy, which should be addressed to mitigate reputational risk. Overall, the security maturity is moderate with room for enhancement in transparency and technical controls.

Recommendations

  1. Publish a dedicated security policy and incident response contact information on the website.
  2. Implement and configure security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Verify and update WHOIS domain registration information to ensure transparency and trust.
  4. Conduct regular security audits of third-party plugins and scripts to prevent vulnerabilities.
  5. Enhance data retention and privacy disclosures related to analytics and user data.

Contact details published on the site

Addresses
Legal name
BAUM Holding GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
BAUM Holding GmbH
Description
Häuser, Gebäude und Wohnareale sind es, die einer Stadt ihr Gesicht und Menschen ein Zuhause geben. Die BAUM Unternehmensgruppe kümmert sich um Ankauf, Projektentwicklung, Realisierung und Vermietung von Immobilien vor allem in und um Hannover.
Key services
Ankauf von Immobilien, Projektentwicklung, Bestandsverwaltung, Vermietung und Mietservice, Hotellerie, Gastronomie, Landwirtschaft & Pferdezucht
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, PHP, jQuery, Bootstrap 3, Google Maps API, Matomo Analytics, LightGallery, ImmoMakler plugin, Accessibility OneTap plugin
Frameworks
Bootstrap
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
excellent
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with opt-in mechanism
  • Accessibility features implemented

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Marketing tools
Google Maps API, Matomo Analytics
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content in German language.
  2. Strong focus on real estate services in Hannover and northern Germany.
  3. Comprehensive cookie and privacy policies with GDPR compliance.
  4. Accessibility features implemented via OneTap plugin.
  5. No visible security headers detected in provided data; recommend adding.
  6. WHOIS data missing, which is unusual for an active commercial website.
  7. Use of Matomo analytics indicates privacy-conscious tracking.
  8. Multiple social media links to Facebook and Instagram present.
  9. Contact information clearly displayed in footer and contact page.
  10. Multiple forms present for property search and contact purposes.
Technical notes

Notes

The website is built on WordPress CMS using Bootstrap 3 framework and jQuery library, supplemented by specialized plugins such as ImmoMakler for real estate listings and OneTap for accessibility. Google Maps API integration supports location-based services. The site demonstrates good mobile responsiveness and accessibility compliance. Performance is moderate, with some optimization potential in script loading and caching. SEO is supported by structured data (JSON-LD) and Open Graph metadata. The use of Matomo analytics reflects a privacy-conscious approach. No hosting provider details were identified from the data. Overall, the technical infrastructure is solid but could benefit from modernization of some components and enhanced security configurations.
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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