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Security report for vio.hr

Vodoopskrba i odvodnja d.o.o. · Energy · 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

Vodoopskrba i odvodnja d.o.o. is a Croatian water utility company primarily serving the city of Zagreb and surrounding municipalities. The company provides essential services including water supply, wastewater drainage, and treatment, supported by a strong infrastructure and over 130 years of operational history. It operates under the parent company Zagrebački Holding, reflecting a stable market position in the regional energy and utilities sector. The website offers comprehensive customer service features, including emergency contact, online meter reading submission, and detailed informational resources. Technically, the site employs a modern tech stack with Bootstrap, jQuery, and integrates Google Analytics and Tag Manager for user insights. Accessibility and mobile responsiveness are well addressed, enhancing user experience. Security posture is solid with HTTPS and ISO certifications, though there is room for improvement in HTTP security headers and incident response transparency. Privacy compliance is robust, featuring a detailed cookie consent mechanism and GDPR-aligned privacy policies. Overall, the website reflects a professional and trustworthy digital presence aligned with its business objectives.

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

    • 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, Facebook, Twitter, YouTube

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

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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
67
Security headers
15
Email security
85
DNS health
75
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

The company holds a strong position as a regional utility provider with a clear focus on water supply and wastewater management. Its business model is utility-based, funded through service fees and public investments, targeting residential and commercial customers in Zagreb and nearby areas. The presence of ISO certifications and detailed public documentation indicates a commitment to quality and regulatory compliance. The company leverages partnerships with Zagrebački Holding and web service providers like Globaldizajn, supporting operational and digital maturity. Growth indicators include ongoing infrastructure investments and EU project participation. The website's comprehensive content and multiple contact channels support customer engagement and transparency, reinforcing market trust.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, secure form handling, and adherence to data protection regulations including GDPR. The presence of a designated Data Protection Officer and detailed privacy policies further strengthen compliance. However, the absence of explicit security headers such as Content Security Policy (CSP), HSTS, and X-Frame-Options suggests potential areas for enhancement to mitigate common web vulnerabilities. No visible vulnerabilities or exposed sensitive data were detected. Incident response information is not explicitly provided, which could be improved to enhance readiness and transparency. Overall, the security measures align well with the business's operational needs but could benefit from additional hardening.

Recommendations

  1. Implement comprehensive HTTP security headers including CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish a security.txt file to facilitate responsible vulnerability disclosure and improve incident response communication.
  3. Provide explicit incident response contact information on the website to improve transparency and readiness.
  4. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
  5. Enhance form input validation and sanitization to prevent injection attacks and ensure data integrity.

Contact details published on the site

Addresses
Legal name
Vodoopskrba i odvodnja d.o.o.
VAT number
OIB: 83416546499
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Vodoopskrba i odvodnja d.o.o.
Description
Vodoopskrba i odvodnja d.o.o. is a company providing water supply and wastewater management services primarily in the city of Zagreb and surrounding municipalities. They manage water quality, wastewater treatment, and infrastructure investments.
Key services
Water supply, Wastewater drainage, Wastewater treatment, Emergency interventions, Customer service and billing
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Bootstrap 3.2.0, Font Awesome 4.2.0, Ionicons, Slick Slider, Google Analytics, Google Tag Manager
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Secure forms with required fields
  • Cookie consent banner with categories
  • Data protection officer contact provided
  • ISO certifications related to quality and safety

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Comprehensive cookie consent and privacy policy in Croatian language.
  3. Multiple contact points including phone, email, physical addresses, and a user form.
  4. Use of standard web technologies and analytics tools.
  5. Strong business identity linked to Zagrebački Holding.
  6. ISO certifications indicate commitment to quality and security standards.
  7. No visible security headers detected; opportunity for improvement.
  8. No explicit terms of service page found.
  9. Good mobile and accessibility features implemented.
Technical notes

Notes

The website is built on a stable and widely supported technology stack including Bootstrap 3.2.0, jQuery, Font Awesome, and Ionicons, ensuring compatibility and ease of maintenance. Google Analytics and Tag Manager are integrated for analytics and marketing insights. The site is mobile responsive and includes accessibility features such as font size adjustment and contrast modes, improving usability for diverse users. Hosting is likely provided by CARNET, consistent with the Croatian domain registration. Performance is moderate, with potential for optimization by updating to newer frameworks and reducing external dependencies. The CMS appears to be Globaladmin, a specialized solution for content management. Overall, the technical infrastructure supports the business needs effectively but could benefit from modernization and enhanced security configurations.
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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