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Security report for uster.ch

Stadt Uster · Government · Switzerland

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

67/100

Risk levelMedium

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

Stadt Uster operates as the official municipal government website for the city of Uster, Switzerland. It provides comprehensive information and services to residents, businesses, and visitors, including online administrative services, event announcements, and local news. The site targets a broad audience within the community and supports civic engagement through accessible contact and feedback channels. The business model is centered on public service delivery and community information dissemination. Technically, the website employs modern web technologies including Matomo for analytics, ES modules for JavaScript, and a Swiss-based CMS platform (i-web). The site is mobile-optimized, accessible, and SEO-friendly, with a moderate performance profile. Hosting appears to be local to Switzerland, enhancing data sovereignty and compliance. From a security perspective, the site enforces HTTPS, uses secure login forms, and implements privacy and cookie policies with user consent mechanisms. However, it lacks a dedicated security policy or incident response contact information, and no advanced security headers were detected. No vulnerabilities or suspicious content were found, indicating a solid security posture appropriate for a government website. Overall, Stadt Uster's website is a trustworthy, professional, and well-maintained digital presence for the municipality. It effectively balances user experience, privacy compliance, and security, though it could benefit from enhanced transparency around security policies and incident response procedures.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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

5 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 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

  3. 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
    • High

      Weak SSL Key Length

      SSL certificate uses 384-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching uster.ch

This scan found 25 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

€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
42
Security headers
40
Email security
80
DNS health
85
Network security
100
GDPR outside view
53
Average
67

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

Stadt Uster holds a stable position as the local government authority for the city of Uster, providing essential public services and information. Its competitive advantage lies in its comprehensive online service offerings and community engagement tools. Revenue streams are typical of municipal governments, funded by public budgets rather than commercial sales. The target customer segments include residents, local businesses, tourists, and government stakeholders. Growth indicators include ongoing digital service enhancements and community outreach initiatives. The partnership ecosystem includes regional tourism and energy organizations, as evidenced by linked domains. Strategic observations highlight a focus on digital accessibility, sustainability (Energiestadt affiliation), and transparent communication.

Security posture

The website demonstrates a mature security posture with mandatory HTTPS, secure login mechanisms, and privacy compliance aligned with GDPR. The use of Matomo analytics respects user privacy better than many alternatives. However, the absence of explicit security policies and incident response contacts suggests room for improvement in transparency and preparedness. No exposed sensitive data or vulnerable libraries were detected. The site would benefit from implementing security headers such as Content-Security-Policy and X-Frame-Options to mitigate common web threats. Overall, the security culture appears adequate for a municipal website but could be enhanced to meet higher standards.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and user guidance.
  2. Provide clear incident response contact information to facilitate vulnerability reporting.
  3. Implement HTTP security headers like Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Regularly audit third-party scripts and dependencies to ensure no vulnerabilities are introduced.
  5. Enhance user awareness by providing security tips and privacy notices prominently.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Stadt Uster
Description
Official website of the city of Uster providing information about the municipality, administration, services, events, and local news.
Key services
Online administrative services (Online-Schalter), Public information and news, Event announcements, Contact and feedback channels, Tourism and cultural information
Content quality
good
Branding
consistent

Technology

Stack
Matomo Analytics, FontAwesome, Bootstrap (implied by classes like col-md-9), JavaScript ES Modules, CSS Stylesheets
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Secure login form with email and password
  • Privacy policy and cookie consent implemented

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Transparency
basic

Site quality

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

Key observations

  1. Website is a well-structured official municipal site for Stadt Uster.
  2. Content is comprehensive and relevant to residents and visitors.
  3. Good use of privacy and cookie policies with consent mechanisms.
  4. No signs of malicious or suspicious content.
  5. Social media presence is official and consistent.
  6. No explicit security policy or incident response page found.
  7. Modern web technologies and CMS used.
  8. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website is built on a Swiss CMS platform (i-web) with modern front-end technologies including ES modules and responsive CSS frameworks. It uses Matomo for privacy-conscious analytics and FontAwesome for icons. The site loads asynchronously critical scripts and preloads modules for performance. Hosting appears local, supporting data privacy compliance. The site is mobile-optimized and accessible with features like accessibility toggle and semantic HTML. Performance is moderate, with potential for optimization in image delivery and script loading. No major technical debt or outdated technologies were detected, indicating a well-maintained infrastructure.
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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