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Security report for onex.ch

Ville d'Onex · Government · Switzerland

Medium risk. 7 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

55/100

Risk levelMedium

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

The website www.onex.ch is the official digital presence of the Ville d'Onex, a municipal government entity in Switzerland. It provides information and services related to sports, education, social, and cultural infrastructure for approximately 19,000 residents. The site is primarily in French and targets local citizens and visitors. The business model is that of a government authority delivering public services and community information. The website demonstrates a consistent and professional brand image aligned with its municipal purpose. Technically, the site is built using modern web technologies including Nuxt.js and Tailwind CSS, with Google Tag Manager integrated for analytics. The site is mobile-optimized and performs moderately well. Security measures such as HTTPS and standard security headers are implemented, indicating a good security posture. However, there is a lack of explicit privacy and cookie policies, as well as no visible incident response or security contact information, which are areas for improvement. From a security perspective, the site shows no signs of vulnerabilities or malicious content. The WHOIS data confirms the domain is legitimately registered to the Ville d'Onex, consistent with the website's claims. The overall risk is low, but the absence of privacy compliance documentation and incident response details slightly reduces the trust score. Strategically, the website should prioritize publishing comprehensive privacy and cookie policies with consent mechanisms, establish clear security and incident response policies, and enhance accessibility features to meet compliance standards. These steps will improve user trust, legal compliance, and overall security posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 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

7 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 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 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

    • 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, YouTube, Google APIs

      What to do: Document all third-party data sharing in your privacy policy

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

Keep watching onex.ch

This scan found 22 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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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
72
Security headers
60
Email security
70
DNS health
75
Network security
20
GDPR outside view
35
Average
55

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

Ville d'Onex operates as a local government authority serving a small population in Switzerland. Its competitive advantage lies in providing centralized access to municipal services and community information. The business model is non-commercial, focused on public service delivery. Revenue streams are typical of municipal funding rather than commercial sales. The target customer segment is local residents and visitors seeking information on sports, education, social, and cultural facilities. Growth indicators are not applicable in a commercial sense but maintaining digital presence and service quality is critical. The partnership ecosystem is minimal, with no external business partners identified. Operationally, the website supports transparency and citizen engagement. The site’s market presence is stable as an official government portal, with no direct commercial competition. Strategic observations include the need for enhanced privacy and security transparency to align with evolving regulatory requirements and citizen expectations.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and multiple security headers present, reducing risks of common web attacks. No exposed sensitive data or vulnerable libraries were detected. The use of Google Tag Manager introduces moderate user tracking, but no excessive or suspicious tracking was found. The absence of a published security policy or incident response contact limits the site's readiness to handle security incidents effectively. Compliance gaps exist regarding GDPR-related documentation such as privacy and cookie policies. The security culture appears basic but adequate for a municipal site. Recommendations include formalizing security policies, publishing a vulnerability disclosure program, and improving user privacy controls to enhance compliance and trust.

Recommendations

  1. Publish a comprehensive privacy policy and cookie policy with explicit user consent mechanisms.
  2. Create and display a security policy and incident response contact information to improve transparency and readiness.
  3. Implement a vulnerability disclosure or security.txt file to encourage responsible reporting of security issues.
  4. Enhance accessibility features to meet recognized standards and improve user experience for all visitors.
  5. Regularly review and update third-party scripts and tracking tools to minimize privacy risks and ensure compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Ville d'Onex
Description
La Ville d'Onex offre à ses 19 000 habitantes et habitants des équipements sportifs et un ensemble d'infrastructures scolaires, sociales et culturelles.
Key services
sports facilities, school infrastructure, social infrastructure, cultural infrastructure
Content quality
good
Branding
consistent

Technology

Stack
Nuxt.js, Tailwind CSS, Google Tag Manager
Frameworks
Vue.js, Nuxt.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • security headers present
  • no exposed sensitive data detected

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Official municipal website for the city of Onex, Switzerland.
  2. Content is in French, targeting local residents and visitors.
  3. No privacy or cookie policies explicitly found on the site.
  4. Uses modern web technologies and frameworks.
  5. Security posture is good with HTTPS and security headers.
  6. Limited contact information and no explicit security or incident response policies.
  7. No signs of suspicious or malicious content.
  8. Google Tag Manager used for analytics and tracking.
Technical notes

Notes

The website is built on a modern JavaScript framework (Nuxt.js) with Tailwind CSS for styling, indicating a contemporary and maintainable codebase. Google Tag Manager is used for analytics and marketing tracking. The site is responsive and mobile-friendly, with good SEO metadata including Open Graph tags. Performance is moderate, with potential for optimization in loading times. No CMS was explicitly detected, suggesting a custom or framework-based solution. Hosting details are not explicit but the presence of HTTPS and security headers indicates a professionally managed environment. Technical risks are low, but the lack of explicit privacy and security documentation represents a compliance risk. Opportunities exist to improve accessibility and formalize privacy controls to reduce technical debt and regulatory exposure.
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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