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Security report for gef.de

GEF Ingenieur AG · Energy · Germany

High risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

46/100

Risk levelHigh

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

GEF Ingenieur AG is a well-established German engineering company specializing in heat supply and district heating solutions with over 40 years of experience. Their services span strategic consulting, planning, research, and software development tailored to the energy sector. The company targets municipalities, energy providers, and research institutions within Germany and the EU. Technically, the website is built on WordPress using the Divi theme, with common plugins for forms and social icons, hosted on rzone.de servers. The site is professionally designed, mobile-optimized, and content-rich, reflecting a mature digital presence. Security posture is adequate with HTTPS enabled but lacks advanced security headers and published security policies. Privacy compliance is weak due to missing privacy and cookie policies. Overall, the site is trustworthy and professional but could improve in compliance and security transparency.

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

8 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

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  2. 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';…

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Keep watching gef.de

This scan found 27 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
77
Security headers
15
Email security
65
DNS health
70
Network security
20
GDPR outside view
28
Average
46

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

GEF Ingenieur AG holds a strong market position in the energy engineering sector, focusing on district heating and related infrastructure. Their competitive advantage lies in their long-standing expertise, comprehensive service portfolio, and proprietary software solutions. The business model combines consulting, planning, and software development, serving public and private sector clients. Growth is supported by active research and development and partnerships with specialized software providers. The company maintains a consistent brand and professional online presence, though lacks explicit compliance disclosures. Their ecosystem includes partner domains like siskmr.com and fw-trafo.de, indicating collaboration in software and transformation projects.

Security posture

The website demonstrates a baseline security posture with HTTPS enforced and no visible exposure of sensitive data. However, it lacks critical security headers such as Content-Security-Policy and X-Frame-Options, which are recommended to mitigate common web attacks. There is no published incident response or vulnerability disclosure policy, which limits transparency and readiness perception. The absence of a security.txt file and security-related contact channels further reduces security maturity. The use of reputable plugins and a maintained CMS platform is positive, but regular security audits and policy publication are advised to enhance trust and compliance.

Recommendations

  1. Implement and publish a comprehensive privacy policy and cookie consent mechanism to improve GDPR compliance.
  2. Add security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen web security.
  3. Create and publish a security.txt file and incident response policy to facilitate vulnerability reporting and improve transparency.
  4. Regularly audit and update all CMS components and plugins to mitigate vulnerabilities.
  5. Enhance contact information visibility including direct company emails and phone numbers for improved user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
GEF Ingenieur AG
Description
Die GEF Ingenieur AG ist ein unabhängiger Dienstleister im Wärmesektor mit über 40 Jahren Erfahrung. Sie bieten umfassende Dienstleistungen in Nah- und Fernwärmeversorgung, inklusive Analyse, Planung, Forschung und Entwicklung sowie Spezialsoftwareentwicklung. Sie bedienen Kunden in Deutschland und der EU.
Key services
Studien und Konzepte, Anlagenplanung, Trassen- und Leitungsplanung, Gutachten und Zertifizierungen, Forschung und Entwicklung, Transformations-Konzepte für die Wärmewende
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Divi Theme, jQuery, Contact Form 7, Social Icons Widget by WPZoom
Frameworks
Divi
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
65/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of reputable plugins

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is professional and content-rich focused on energy engineering and heat supply services.
  2. No privacy or cookie policies explicitly found, indicating potential compliance gaps.
  3. No explicit security or incident response policies published.
  4. Uses WordPress with Divi theme and common plugins.
  5. No suspicious or malicious content detected.
  6. Contact information is limited to contact forms and search form; no explicit emails or phone numbers found in HTML.
  7. External links to partner domains and software products are present.
  8. No advertising or tracking scripts detected.
Technical notes

Notes

The website is built on a modern WordPress platform using the Divi theme, which provides a flexible and responsive design. The tech stack includes jQuery and popular plugins such as Contact Form 7 and social icon widgets. Hosting is provided by rzone.de, a known German hosting provider. Performance is moderate with good mobile optimization and SEO practices evident from meta tags and structured content. Accessibility is basic but could be improved with ARIA roles and better semantic markup. No major technical debt or deprecated technologies were detected, but security enhancements and privacy compliance improvements are recommended.
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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