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Security report for brueggemann-effizienzhaus.de

BRÜGGEMANN Effizienzhaus GmbH · Energy · Germany

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

63/100

Risk levelMedium

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

BRÜGGEMANN Effizienzhaus GmbH is a German company specializing in the construction and consulting of modern, intelligent, and sustainable energy-efficient houses. Positioned as a medium-sized player within the energy and real estate sectors, the company offers comprehensive services including building biology, energy efficiency consulting, planning, manufacturing, and quality assurance. Their market approach targets homeowners and developers seeking sustainable housing solutions. Technically, the website is built on TYPO3 CMS with modern frontend technologies such as jQuery, Foundation, and Slick Slider, providing a good user experience with mobile optimization and clear navigation. The site employs GDPR-compliant cookie consent mechanisms and integrates Google Analytics for user behavior tracking. Security posture is solid with HTTPS enforced and no visible vulnerabilities, though formal security policies and incident response contacts are absent. Overall, the website reflects a professional and trustworthy business presence with room for improvement in security transparency and contact information availability.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 100 · Medium
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

6 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 brueggemann-effizienzhaus.de

This scan found 26 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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Recommended

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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
57
Security headers
25
Email security
60
DNS health
65
Network security
100
GDPR outside view
68
Average
63

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 brueggemann-effizienzhaus.de, from OffSeq Breach.

No leaked records found

Breach holds no records for brueggemann-effizienzhaus.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

The company operates within the energy-efficient housing market, leveraging its parent company BRÜGGEMANN Unternehmensgruppe and subsidiaries focused on wood construction and roofing technologies. Their competitive advantage lies in sustainable building practices and comprehensive service offerings from planning to quality assurance. The business model centers on manufacturing and consulting, targeting environmentally conscious customers. The website's integration with social media and use of modern CMS indicates digital maturity. Growth potential is supported by clear branding and a consistent online presence. Partnerships with subsidiaries enhance service breadth. Strategic observations suggest focusing on expanding digital contact channels and formalizing security and compliance documentation to strengthen market trust.

Security posture

The website demonstrates a moderate to good security maturity level with HTTPS enabled and cookie consent mechanisms aligned with GDPR. No exposed sensitive data or vulnerable libraries were detected. However, the absence of explicit security policies, incident response contacts, and security headers like Content-Security-Policy or X-Frame-Options indicates gaps in security best practices. The use of third-party analytics and tag management is transparent and consent-based. To enhance security posture, the company should publish formal security and incident response policies, implement additional HTTP security headers, and conduct regular security audits of third-party components. These steps will reduce risk exposure and improve compliance with evolving regulations such as NIS2.

Recommendations

  1. Publish a formal security policy and make it accessible on the website.
  2. Provide clear incident response contact information, such as a security@ or abuse@ email address.
  3. Implement and configure HTTP security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Regularly audit and update third-party scripts and libraries to mitigate vulnerabilities.
  5. Enhance contact information availability by adding verified company emails and phone numbers on the website.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
BRÜGGEMANN Effizienzhaus GmbH
Description
BRÜGGEMANN Effizienzhaus GmbH specializes in modern, intelligent, and sustainable energy-efficient houses. The company offers services including biogenic building biology, energy efficiency consulting, planning, manufacturing, and quality assurance.
Key services
Energy-efficient house construction, Building biology consulting, Planning and design, Manufacturing and assembly, Quality assurance
Content quality
good
Branding
consistent

Technology

Stack
TYPO3 CMS, jQuery, Foundation CSS framework, Slick Slider, FancyBox
Frameworks
TYPO3 CMS, Foundation
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with opt-in/opt-out
  • No exposed sensitive data in HTML
  • Use of session cookies for login

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

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 challenges.
  2. Uses TYPO3 CMS with modern frontend frameworks and libraries.
  3. Cookie consent mechanism is implemented and GDPR compliant.
  4. No explicit security policy or incident response information found.
  5. Social media presence is active on major platforms.
  6. No email addresses or phone numbers explicitly found in the provided content.
  7. No forms with input fields detected in the provided HTML snippet.
  8. No terms of service page detected.
  9. No security headers explicitly visible in the HTML content.
  10. SSL is enabled and presumably well configured.
Technical notes

Notes

The website is built on TYPO3 CMS, a robust and widely used content management system, combined with frontend technologies like jQuery, Foundation CSS framework, Slick Slider, and FancyBox for interactive elements. The site is mobile-optimized and uses modern cookie consent tools compliant with GDPR. Performance is moderate, with room for optimization in loading speed and accessibility features. The hosting provider is not explicitly identified, but the domain uses French-based name servers, which is unusual but not necessarily problematic. SEO practices are good with proper meta tags and structured cookie consent information. Technical risks include the lack of visible security headers and incomplete contact information, which could impact trust and compliance. Overall, the technical infrastructure supports a professional online presence with opportunities for modernization and enhanced security.
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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