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Security report for diewerke.ch

die werke versorgung wallisellen ag · Energy · Switzerland

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

61/100

Risk levelMedium

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

Die Werke Versorgung Wallisellen AG is a regional Swiss energy utility company providing sustainable and secure energy services including electricity, gas, water, thermal networks, and digital networks. The company targets residential and commercial customers in Wallisellen and surrounding areas, emphasizing fair pricing and environmental responsibility. Their digital presence includes a customer portal and active social media engagement, supporting customer service and communication. Technically, the website employs modern JavaScript libraries such as jQuery, Swiper.js, and tracking tools like Google Analytics and Facebook Pixel. The site is mobile optimized, accessible, and SEO-friendly, with a custom CMS backend inferred from URL structures. Performance is moderate with good navigation and content quality. From a security perspective, the site uses HTTPS with good SSL configuration and secure form validation. However, it lacks explicit published security policies and incident response contacts. No vulnerabilities or exposed sensitive data were detected. Privacy and cookie policies are present and GDPR compliant, supporting user consent and data protection. Overall, the website is professional, trustworthy, and well-aligned with the company's business sector. Recommendations include publishing a formal security policy, incident response information, and enhancing security headers to further strengthen the security posture.

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

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 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

  3. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

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

Keep watching diewerke.ch

This scan found 21 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.

Daily monitoring

Recommended

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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
95
Security headers
35
Email security
70
DNS health
80
Network security
20
GDPR outside view
68
Average
61

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 diewerke.ch, from OffSeq Breach.

Total records
1
Employees
0
Customers
1
Third parties
0
Weak passwords
0%

1 subdomain 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 diewerke.ch.

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

Technical appendix

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

Business context

Business profile

Die Werke operates as a medium-sized regional energy supplier in Switzerland, focusing on sustainable energy solutions and customer-centric services. Their business model revolves around providing essential utilities with an emphasis on renewable energy and digital services. The company maintains a strong local market position supported by transparent communication, customer engagement through newsletters and social media, and a dedicated customer portal. Growth indicators include active news updates and innovative projects like local solar energy initiatives. The partnership ecosystem includes digital service domains such as their customer portal. Strategic observations highlight a commitment to sustainability and regional responsibility, positioning them well in the evolving energy market.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, secure form handling, and no visible vulnerabilities or sensitive data exposure. Privacy compliance is well addressed with clear cookie and privacy policies. However, the absence of a published security policy and incident response contacts limits transparency and preparedness communication. The use of third-party tracking scripts introduces moderate user tracking but is balanced with privacy mechanisms. No security.txt or vulnerability disclosure mechanisms are present, which could improve incident handling and trust. Overall, the security maturity is good but could benefit from formalized policies and enhanced security headers.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Add incident response contact information, such as security@ or abuse@ email addresses.
  3. Implement and publish a vulnerability disclosure policy or security.txt file.
  4. Enhance HTTP security headers including Content-Security-Policy and X-Content-Type-Options.
  5. Regularly review and update third-party scripts to mitigate potential vulnerabilities.

Contact details published on the site

Addresses
Legal name
die werke versorgung wallisellen ag
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
die werke versorgung wallisellen ag
Description
Nachhaltig und sicher versorgt, zu fairen Preisen. Energieversorgung und Dienstleistungen für Strom, Gas, Wasser, thermische Netze, Digitalnetze und Energielösungen in Wallisellen.
Key services
Stromversorgung, Gasversorgung, Thermische Netze, Wasserversorgung, Digitalnetze, Energielösungen, Kundendienst
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Swiper.js, Fancybox, Google Tag Manager, Google Analytics, Facebook Pixel, Tooltipster
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Secure forms with validation

Analytics and tracking

Services
Google Analytics, Facebook Pixel
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Facebook Pixel
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Strong focus on customer service and regional energy supply.
  3. Good use of modern JavaScript libraries for UI and tracking.
  4. Comprehensive contact information and customer portal available.
  5. No signs of malicious or suspicious content.
  6. Privacy and cookie policies are present and GDPR compliant.
  7. No explicit security policy or incident response information published.
Technical notes

Notes

The website uses a custom CMS platform with a modern front-end stack including jQuery, Swiper.js for sliders, and Fancybox for media display. Tracking and marketing tools include Google Tag Manager, Google Analytics, and Facebook Pixel. The site is mobile responsive and accessible with ARIA roles and skip links. Performance is moderate, with room for optimization. SEO is supported by proper meta tags and Open Graph data. No major technical debt or outdated libraries were detected. Hosting provider details are not explicitly available. Overall, the technical infrastructure supports a stable and user-friendly experience with opportunities for further modernization and security hardening.
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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