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Security report for avacon-netz.de

Avacon Netz GmbH · Energy · Germany

Low risk. 3 critical or high findings in Security headers and GDPR outside view.

Security score

82/100

Risk levelLow

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

Avacon Netz GmbH operates as a major regional energy network operator in Germany, providing reliable electricity and gas network infrastructure to municipalities, industries, businesses, and households. The company serves approximately 16 million people across a large geographic area, positioning itself as a key player in the German energy sector. The website reflects a mature digital presence with multiple customer portals and comprehensive service offerings tailored to various customer segments. Technically, the site employs modern web technologies including React, Adobe Experience Manager CMS, and integrates consent management tools to comply with GDPR requirements. Security posture is strong with HTTPS enforcement, content security policies, and no visible vulnerabilities, although explicit security policies and incident response information are not published. Overall, the website is professional, trustworthy, and well-optimized for its target audience.

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

3 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 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

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

Keep watching avacon-netz.de

This scan found 14 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
100
Security headers
55
Email security
98
DNS health
70
Network security
100
GDPR outside view
68
Average
82

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

Avacon Netz GmbH is a subsidiary of E.ON SE, one of the largest energy companies in Europe. The business model focuses on energy network operation and customer service for electricity and gas distribution. The company leverages digital tools such as online portals for house connections and energy feed-in management, indicating a customer-centric approach. The presence of detailed regulatory and contractual information suggests compliance with German energy regulations. The partnership ecosystem includes E.ON group services and middleware platforms for authentication and API integration. Growth indicators include digital transformation efforts and comprehensive customer engagement channels.

Security posture

The website demonstrates a solid security foundation with HTTPS, security headers, and a consent management platform for cookie compliance. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of a published security policy, incident response plan, or vulnerability disclosure program represents a compliance gap. The use of reputable hosting and DNS providers like Cloudflare adds to the security robustness. Recommendations include publishing explicit security policies and establishing a vulnerability disclosure channel to enhance transparency and trust.

Recommendations

  1. Publish a dedicated security policy and incident response information page.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Enhance website accessibility to meet higher compliance standards.
  4. Regularly audit third-party scripts and libraries for security vulnerabilities.
  5. Maintain transparency on data retention policies related to analytics and tracking.

Contact details published on the site

Addresses
Legal name
Avacon Netz GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Avacon Netz GmbH
Description
Wir sorgen für die zuverlässige Bereitstellung der Strom- und Gasnetze für Kommunen, Industrie, Gewerbe und Haushalte. Unser Netzgebiet für Strom umfasst über 55.000 Quadratkilometer und erstreckt sich von der Nordseeküste bis Südhessen. Über Hoch-, Mittel- und Niederspannungsleitungen von rund 64.000 km Länge sowie ein mehr als 21.000 km langes Erdgasnetz bringen wir die Energie sicher zu unseren Kunden. Rund 16 Millionen Menschen werden über unsere Netze mit Energie versorgt.
Key services
Stromnetzbereitstellung, Gasnetzbereitstellung, Netzanschluss, Energieeinspeisung, Kundenservice
Content quality
good
Branding
consistent

Technology

Stack
Adobe Helix RUM, Usercentrics CMP, Google Tag Manager, Matomo Tag Manager, React, Webpack
Frameworks
React
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management platform for cookies
  • No exposed sensitive data in HTML
  • Use of CSP hashes for inline scripts

Analytics and tracking

Services
Matomo Tag Manager, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo Tag Manager, Usercentrics CMP
Marketing tools
Usercentrics Consent Management, Matomo Tag Manager
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. Content is in German and targets German energy customers.
  3. Strong use of consent management for GDPR compliance.
  4. Multiple customer portals and service links indicate mature digital presence.
  5. No explicit security or incident response policies published.
  6. No vulnerability disclosure or security.txt found.
  7. Use of modern web technologies and frameworks.
  8. Consistent branding and professional design.
  9. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on Adobe Experience Manager CMS with React and Webpack for frontend delivery, indicating a modern and scalable infrastructure. Integration of Usercentrics for consent management and Matomo for analytics shows attention to privacy and data governance. Hosting and DNS services are provided by Cloudflare, ensuring performance and security benefits. Performance is moderate with good mobile optimization and SEO practices. Technical risks are minimal but include reliance on multiple third-party scripts which require ongoing security monitoring. Opportunities exist to improve accessibility and publish more detailed technical and security documentation.
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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