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Security report for sefe-energy.eu

SEFE Energy GmbH · Energy · Germany

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

Security score

64/100

Risk levelMedium

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

SEFE Energy GmbH is a prominent European energy supplier specializing in delivering natural gas, hydrogen, and digital infrastructure solutions to industrial and municipal clients across Germany, Belgium, and the Netherlands. As part of the SEFE Group, owned by the German federal government, the company serves over 50,000 customers and emphasizes sustainability and energy transition through investments in clean energy and hydrogen ecosystems. The website reflects a mature digital presence with comprehensive product information, customer portals, and multilingual support. Technically, the site leverages modern web technologies including Umbraco CMS, Vue.js, and integrates analytics and marketing tools such as Google Tag Manager and Trustpilot widgets. Security posture is strong with HTTPS enforced and cookie consent mechanisms in place, though some enhancements in security headers and explicit incident response policies could improve resilience. Overall, SEFE Energy presents a trustworthy and professional online presence aligned with its market position as a leading energy provider in Europe.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 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

6 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

    • 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

  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 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 sefe-energy.eu

This scan found 25 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
25
Email security
60
DNS health
80
Network security
100
GDPR outside view
40
Average
64

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 sefe-energy.eu, from OffSeq Breach.

No leaked records found

Breach holds no records for sefe-energy.eu 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

SEFE Energy operates in the energy sector with a focus on industrial and municipal energy supply, offering tailored solutions in natural gas, hydrogen, and digital infrastructure. The company benefits from its affiliation with the SEFE Group and German government ownership, providing stability and credibility. Its business model centers on comprehensive energy services, including customer portals and market reports, targeting large multinational corporations and local utilities. The website's content and structure indicate a well-established brand with strong customer engagement and a commitment to sustainability. Partnerships such as with gas-h2.de and subsidiaries in multiple European countries support its growth and market reach. The company’s digital maturity is evidenced by integrated analytics, marketing, and customer support technologies.

Security posture

The website demonstrates a solid security foundation with HTTPS enabled and a cookie consent framework compliant with GDPR. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of HTTP security headers (e.g., CSP, HSTS) and lack of published security policies or incident response contacts represent areas for improvement. The use of third-party scripts like LiveChat and Trustpilot introduces potential risk vectors that require ongoing monitoring. The site does not provide a security.txt or vulnerability disclosure program, which could enhance transparency and trust. Overall, the security posture is good but could be strengthened by adopting additional best practices and formalizing incident response mechanisms.

Recommendations

  1. Implement comprehensive HTTP security headers including Content Security Policy (CSP), Strict-Transport-Security (HSTS), and X-Frame-Options to mitigate common web attacks.
  2. Publish a clear security policy and incident response contact information on the website to improve transparency and preparedness.
  3. Establish a vulnerability disclosure program and consider adding a security.txt file to facilitate responsible reporting.
  4. Regularly audit and update third-party scripts and libraries to minimize exposure to vulnerabilities.
  5. Enhance monitoring and validation of form inputs to prevent injection and other input-based attacks.

Contact details published on the site

Addresses
Legal name
SEFE Energy GmbH
VAT number
DE 282 663 709
Registration number
HRB 15778 Amtsgericht Kassel
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
SEFE Energy GmbH
Description
SEFE Energy GmbH is an energy supplier delivering gas and electricity solutions to industrial customers, municipal utilities, and power plants in Germany, Belgium, and the Netherlands. They provide energy for vital services and products used by millions across Europe, including industrial applications, packaging, textiles, and plastics.
Key services
Erdgas (Natural Gas) supply, Wasserstoff (Hydrogen) solutions, Dark Fibre digital infrastructure, Customer portal and support services
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, CSS3, HTML5, Google Tag Manager, Convert Experiences, LiveChat, CookieControl
Frameworks
Umbraco CMS
Platforms
Umbraco CMS
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • Use of secure external scripts

Analytics and tracking

Services
Google Analytics (via GTM), Umbraco Engage analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Convert Experiences, Trustpilot widget, LiveChat tracking
Marketing tools
Trustpilot, LiveChat
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 and professional design.
  2. Strong corporate branding and consistent messaging.
  3. Comprehensive product and service offerings detailed.
  4. Multiple language support (German and English).
  5. Cookie consent and privacy policies are implemented and accessible.
  6. No WHOIS registrant data publicly available due to EURid privacy policy.
  7. Use of modern web technologies and CMS (Umbraco).
  8. Presence of customer portals and support channels.
  9. No security.txt or explicit security policy found.
  10. No incident response or vulnerability disclosure information found.
Technical notes

Notes

The website is built on the Umbraco CMS platform with modern front-end technologies including Vue.js components and modular JavaScript. It uses asynchronous loading for analytics and marketing scripts to optimize performance. The site is mobile-optimized with responsive design and accessibility features such as skip links and ARIA labels. SEO is supported by proper meta tags, Open Graph data, and structured JSON-LD schema for organization and website. Performance metrics indicate fast loading times. The technical stack is modern and well-implemented, though opportunities exist to improve security headers and formalize security policies.
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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