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Security report for enercity.com

enercity AG · Energy · Germany

Medium risk. 4 critical or high findings in Security headers, SSL/TLS and 1 other check.

Security score

72/100

Risk levelMedium

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

enercity AG is a major municipal energy provider in Germany, serving approximately one million customers with electricity, heat, and drinking water. The company also offers services related to electromobility, decentralized energy generation, energy efficiency, telecommunications, and smart infrastructure, emphasizing sustainability and climate neutrality. The website reflects a mature digital presence with comprehensive content, clear navigation, and a strong focus on corporate responsibility and investor relations. Technically, the site employs modern web technologies, including JavaScript and cookie consent management via consentmanager.net, and integrates Google Tag Manager for analytics. Security posture is solid with HTTPS enforced and cookie consent mechanisms, though explicit security headers and published security policies are absent. WHOIS data is missing or inaccessible, which is unusual but does not detract significantly from the site's legitimacy given the rich content and social media presence. Overall, the site is professional, trustworthy, and compliant with GDPR requirements.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 100 · Low
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

4 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 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. 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

  3. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Unregistered MX Record

      MX record points to unregistered domain:

      What to do: Remove or fix MX record pointing to unregistered domain

      • RFC 5321 §5.1
      • NIS2 21(2)(i)
      • IR 2024/2690 12.4: Implementing Regulation (EU) 2024/2690, Annex point 12.4: Asset inventory
      • NIST CM-8: NIST SP 800-53 Rev. 5 CM-8: System Component Inventory

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

Keep watching enercity.com

This scan found 22 issues across 5 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

€25per month

  • 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
72
Security headers
30
Email security
65
DNS health
65
Network security
100
GDPR outside view
100
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 enercity.com, from OffSeq Breach.

No leaked records found

Breach holds no records for enercity.com 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

enercity AG holds a strong market position as one of Germany's largest municipal energy companies, targeting private customers, businesses, and municipalities. Its business model centers on energy supply and related services with a sustainability focus, leveraging a broad portfolio including electricity, heat, water, and smart infrastructure solutions. The company maintains active investor relations and publishes sustainability reports, indicating transparency and strategic growth orientation. The digital ecosystem includes multiple social media channels, enhancing brand engagement. The absence of direct contact emails or phone numbers on the main site suggests a preference for contact forms and controlled communication channels. The missing WHOIS data is a minor anomaly but does not undermine the company's established market presence.

Security posture

The website demonstrates a good security baseline with enforced HTTPS and a comprehensive cookie consent mechanism supporting GDPR compliance. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces the overall security robustness. No publicly available security policy, incident response plan, or vulnerability disclosure program was found, which are recommended best practices for organizations of this size and sector. No vulnerabilities or exposed sensitive data were detected in the HTML content. The use of third-party scripts like consentmanager.net and Google Tag Manager is standard but requires ongoing monitoring for security risks. Overall, the security posture is solid but could be enhanced by publishing security policies and implementing additional HTTP security headers.

Recommendations

  1. Implement and publish explicit HTTP security headers including CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish a formal security policy and incident response plan on the website to improve transparency and preparedness.
  3. Establish a vulnerability disclosure program or security.txt file to facilitate responsible reporting of security issues.
  4. Provide direct security contact information such as a dedicated security email address to improve incident communication.
  5. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
enercity AG
Description
enercity ist eines der größten kommunalen Energieunternehmen Deutschlands: Wir versorgen rund eine Million Menschen mit Strom, Wärme und Trinkwasser. Darüber hinaus bieten wir energienahe Services rund um Elektromobilität, dezentrale Energieerzeugung, Energieeffizienz, Telekommunikation und smarte Infrastruktur. Mit nachhaltigen, intelligenten Lösungen begleiten wir unsere Kund:innen auf dem Weg in die Klimaneutralität.
Key services
Electricity supply, Heat supply, Drinking water supply, Electromobility services, Decentralized energy generation, Energy efficiency services, Telecommunication, Smart infrastructure
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML5, Consentmanager.net (cookie management), Google Tag Manager
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with granular control
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Consentmanager.net
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 in German language.
  2. Strong focus on sustainability and energy services.
  3. Comprehensive cookie consent mechanism implemented.
  4. No direct email or phone contact found on main page; contact form link provided.
  5. Social media presence on Facebook, Instagram, Xing, Kununu, LinkedIn.
  6. No explicit security policy or incident response information published.
  7. No security.txt or vulnerability disclosure found.
  8. WHOIS data missing or inaccessible, which is unusual for a corporate domain.
  9. Website uses modern web technologies and good SEO practices.
Technical notes

Notes

The website is built using modern web standards including HTML5, CSS, and JavaScript, with performance optimized through preloading fonts and images. It uses consentmanager.net for cookie management and Google Tag Manager for analytics, indicating a mature approach to privacy and data collection. The site is mobile-optimized with smooth scrolling and accessible navigation. No CMS or hosting provider information was explicitly detected. Performance is moderate with good SEO practices including meta descriptions, canonical links, and Open Graph tags. Accessibility features are present but could be further enhanced with ARIA roles and landmarks. The absence of explicit security headers is a technical gap. Overall, the technical infrastructure supports a professional and user-friendly experience with room for security improvements.
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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