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Security report for zet.hr

Zagrebački električni tramvaj · Transportation · Croatia

Medium risk. 9 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

59/100

Risk levelMedium

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

Zagrebački električni tramvaj (ZET) operates as the primary public transportation provider in Zagreb, Croatia, offering tram, bus, funicular, and cable car services. The website serves residents and visitors with comprehensive information on ticketing, routes, service updates, and EU-funded infrastructure projects. The company is positioned as a large, essential transportation entity under Zagrebački Holding, with a strong local presence and public sector backing. Technically, the website employs a modern technology stack including Google Tag Manager, Google Analytics, Facebook Pixel, and Hotjar for analytics and user behavior tracking. The site is mobile-optimized with good navigation and SEO practices, though it lacks some accessibility features and a cookie consent mechanism. The CMS appears custom-built, and performance is moderate. From a security perspective, the site uses HTTPS with good SSL configuration and no exposed sensitive data. However, it lacks important security headers and visible security or incident response policies. The absence of a cookie consent banner indicates partial GDPR compliance. No vulnerabilities or suspicious content were detected. Overall, the website is professional, trustworthy, and well-aligned with the business's public transportation mission. Strategic improvements in privacy compliance and security policy transparency would enhance trust and regulatory adherence.

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

9 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

  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 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';…

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Keep watching zet.hr

This scan found 27 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
62
Security headers
15
Email security
80
DNS health
85
Network security
100
GDPR outside view
10
Average
59

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

ZET holds a dominant market position as Zagreb's public transport operator, leveraging EU funding for modernization projects. Its business model is service-oriented, funded by municipal and EU sources, targeting daily commuters and occasional travelers. The company benefits from strong partnerships with city authorities and related transport entities like Croatian Railways. The website reflects a mature digital presence with clear service offerings and user engagement through news and updates. Growth indicators include ongoing infrastructure investments and digital tools like the MojZET app. The partnership ecosystem includes city government and EU structural funds, supporting operational and capital expenditures.

Security posture

The security posture is moderate to good, with HTTPS enforced and no visible sensitive data leaks. The use of multiple third-party analytics introduces some privacy risks, especially without explicit cookie consent. The lack of security headers and incident response information suggests room for maturity improvement. GDPR compliance is partial, with a privacy policy present but no cookie banner. No known vulnerabilities or malware were detected. Incident response readiness and security culture indicators are not publicly visible, which could impact trust in case of security incidents.

Recommendations

  1. Implement a cookie consent banner to comply fully with GDPR requirements.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection.
  3. Publish a clear security policy and incident response contact information to improve transparency and trust.
  4. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
  5. Enhance accessibility features to improve usability for all users.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Zagrebački električni tramvaj
Description
ZET is the public transportation company operating tram, bus, funicular, and cable car services in Zagreb, Croatia. It provides various ticket types, travel planning, and information about transport services and infrastructure projects.
Key services
Tramvajski prijevoz, Autobusni prijevoz, Žičara, Uspinjača, Prijevoz osoba s invaliditetom, Servis autobusa, Nalazni ured
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Google Analytics, Facebook Pixel, Hotjar, jQuery, Flatpickr, Slick Carousel
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of async loading for analytics scripts

Analytics and tracking

Services
Google Analytics, Facebook Pixel, Hotjar
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Facebook Pixel, Hotjar
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. Content is comprehensive for public transport users including ticketing, routes, and news.
  3. No privacy or cookie consent banner detected, which is a GDPR compliance gap.
  4. Multiple EU project references indicate funding and legitimacy.
  5. No visible security policy or incident response information publicly available.
  6. Use of multiple third-party analytics and tracking scripts with no explicit user consent mechanism.
  7. No suspicious or malicious content detected.
Technical notes

Notes

The website uses a custom CMS with modern JavaScript libraries and analytics tools. Performance is moderate, with asynchronous loading of tracking scripts improving load times. Mobile optimization is good, and SEO practices are well implemented with meta tags and Open Graph data. However, accessibility is basic and could be improved. The absence of common CMS footprints suggests a bespoke solution, which may require dedicated maintenance resources. Hosting details are not explicit, but no performance bottlenecks or errors were observed. Technical debt appears low, but security header implementation and privacy compliance need attention.
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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