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Security report for avacon.de

Avacon AG · Energy · Germany

Medium risk. 7 critical or high findings in GDPR outside view and Security headers.

Security score

72/100

Risk levelMedium

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

Avacon AG is a major regional energy supplier in Germany, providing electricity, gas, water, heating, cooling, mobility, and lighting solutions. The company operates intelligent energy networks spanning from the North Sea coast to southern Hesse and from the Dutch border to Saxony-Anhalt. Additionally, Avacon plans, builds, and operates modern fiber optic networks. The website reflects a professional and comprehensive digital presence, leveraging Adobe Experience Manager and modern UI components, with strong mobile optimization and accessibility. Privacy and cookie compliance are well implemented with Usercentrics consent management. Security posture is solid with HTTPS and no visible vulnerabilities, though security headers could be improved and incident response contacts made explicit. Overall, Avacon presents a trustworthy and professional image with clear business information and multiple subsidiary domains.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 100 · Critical
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. 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 Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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 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';…

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

Keep watching avacon.de

This scan found 16 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
10
Average
72

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 avacon.de, from OffSeq Breach.

Total records
36
Employees
0
Customers
10
Third parties
26
Weak passwords
19%

2 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for avacon.de.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

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Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Avacon AG holds a strong market position as one of Germany's largest regional energy providers, serving private customers, businesses, and municipalities. Its business model focuses on regional energy supply and infrastructure services, supported by subsidiaries specializing in network management, renewable energy, fiber optic connectivity, and water services. The company maintains a broad partnership ecosystem and offers a career portal and online shop, indicating diversified revenue streams. The website's content and structure support clear communication of services and corporate responsibility, including compliance and sustainability. The presence of multiple social media channels enhances engagement and brand trust.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, use of consent management for privacy compliance, and no exposed sensitive data in the HTML. The absence of explicit security headers is a minor gap, and no incident response or abuse contact information is published, which could hinder rapid response to security incidents. No vulnerability disclosure or security.txt file is found, limiting transparency for security researchers. Overall, the site is secure for users but could enhance its security culture and incident readiness by publishing additional security policies and contacts.

Recommendations

  1. Implement and configure security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish an explicit incident response or abuse contact email on the website to facilitate reporting and handling of security incidents.
  3. Consider creating and publishing a security.txt file to provide a standardized vulnerability disclosure channel.
  4. Regularly audit third-party scripts and libraries to ensure no vulnerable versions are in use.
  5. Enhance transparency by providing more detailed information about data retention policies and security certifications.

Contact details published on the site

Addresses
Legal name
Avacon AG
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Avacon AG
Description
Als eines der größten regionalen Energieversorgungsunternehmen Deutschlands bringt die Avacon-Unternehmensgruppe Energie genau dorthin, wo Millionen Menschen sie brauchen. Schnell, zuverlässig, effizient und umweltfreundlich. Wir sind Partner für regionale Energielösungen in den Bereichen Strom, Gas, Wasser, Wärme, Kälte, Mobilität und Beleuchtung. Über unsere intelligenten Energienetze verbinden wir Menschen von der Nordseeküste bis Südhessen, von der niederländischen Grenze bis nach Sachsen-Anhalt mit Energie. Darüber hinaus plant, baut und betreibt die Unternehmensgruppe moderne und leistungsstarke Glasfasernetze.
Key services
Electricity supply, Gas supply, Water supply, Heating and cooling solutions, Mobility solutions, Lighting, Fiber optic network planning, construction and operation
Content quality
excellent
Branding
consistent

Technology

Stack
Adobe Helix RUM, Usercentrics Consent Management, Google Tag Manager, EON UI Components, Cloudflare DNS
Frameworks
Adobe Experience Manager (AEM)
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management implemented
  • No exposed sensitive data in HTML
  • Use of modern libraries and frameworks

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Usercentrics Consent Management
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 no blocking or WAF challenge.
  2. Content is professional, well-structured, and comprehensive.
  3. Strong focus on regional energy services and related subsidiaries.
  4. Good privacy and cookie compliance with consent management.
  5. No visible security vulnerabilities or exposed sensitive data.
  6. Use of modern web technologies and Adobe Experience Manager CMS.
  7. Multiple social media channels linked for trust and engagement.
  8. No incident response or abuse contact explicitly found.
  9. No vulnerability disclosure or security.txt found.
Technical notes

Notes

The website is built on Adobe Experience Manager CMS, utilizing EON UI components and modern JavaScript modules. It integrates Usercentrics for consent management and Google Tag Manager for analytics. Hosting and DNS are managed via Cloudflare, providing performance and security benefits. The site is well-optimized for mobile devices and accessibility, with a clear navigation structure and professional design. Performance is moderate, likely due to rich media content and dynamic components. There is an opportunity to improve technical SEO and security headers to further enhance site robustness and user trust.
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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