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Security report for brno.cz

Statutární město Brno · Government · Czech Republic

Medium risk. 5 critical or high findings in GDPR outside view.

Security score

74/100

Risk levelMedium

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

The website www.brno.cz serves as the official digital portal for the statutory city of Brno, Czech Republic. It provides comprehensive municipal services, administrative information, news, and resources for residents and visitors. The site is well-branded, professionally designed, and targets a broad audience including citizens, businesses, and tourists. It operates on a mature technical infrastructure leveraging Liferay CMS, modern JavaScript libraries, and Matomo analytics configured with privacy considerations. From a technical perspective, the site demonstrates good digital maturity with responsive design, accessibility features, and a solid technology stack. The use of Liferay and React indicates a modern platform capable of supporting complex content management and user interactions. Performance is moderate with room for optimization. Security posture is generally strong with HTTPS enforced and privacy-respecting analytics. However, explicit security headers and cookie consent mechanisms are not clearly implemented, representing areas for improvement. The absence of WHOIS data is consistent with CZ.NIC policies and does not detract from the site's legitimacy given its official status. Overall, the website is trustworthy, well-maintained, and serves its governmental function effectively. Strategic recommendations include enhancing security headers, implementing cookie consent for GDPR compliance, and publishing clear security and incident response policies to further strengthen trust and compliance.

Scanned

This is an earlier scan of brno.cz. View the latest report

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

5 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: Facebook, YouTube

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

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

Keep watching brno.cz

This scan found 16 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
100
Security headers
90
Email security
70
DNS health
75
Network security
100
GDPR outside view
10
Average
74

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

Brno.cz is positioned as the authoritative online presence of the Brno city government, offering a wide range of public services including citizen documentation, city administration, cultural events, and urban development information. The business model is non-commercial, focused on public service delivery and information dissemination. The site integrates with various partner domains related to tourism, parking, and city planning, indicating a collaborative ecosystem. The content is regularly updated with news and events, reflecting active engagement with the community. The platform supports digital transformation initiatives such as online appointments and data transparency, signaling growth and modernization in municipal services.

Security posture

The website exhibits a mature security posture with mandatory HTTPS and privacy-conscious analytics configuration (Matomo with DoNotTrack and disabled cookies). No sensitive data leakage or vulnerable libraries were detected in the HTML content. However, the lack of explicit security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options is a gap that could expose the site to certain web-based attacks. The absence of a cookie consent mechanism may pose GDPR compliance risks. No published security policy or incident response contacts were found, which limits transparency and preparedness communication. Overall, the site is secure but could benefit from enhanced header policies and formal security documentation.

Recommendations

  1. Implement and enforce Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options headers to strengthen web security.
  2. Deploy a cookie consent banner/mechanism to comply fully with GDPR and inform users about tracking.
  3. Publish a clear security policy and incident response contact information on the website.
  4. Consider adding a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  5. Optimize site performance and mobile responsiveness further to enhance user experience.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Statutární město Brno
Description
Oficiální web statutárního města Brna
Key services
Citizen services (ID cards, passports, driver licenses), City administration information, News and events, Public transport and parking information, Tourism and cultural information
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery 3.6.0, GLightbox, Matomo Analytics, Liferay Portal, YUI 3, React 16.12.0, ClayUI, Metal.js
Frameworks
Liferay Portal
Platforms
Liferay CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected in scripts
  • Use of Matomo with DoNotTrack and disableCookies enabled

Analytics and tracking

Services
Matomo
Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
Matomo
Marketing tools
Matomo Analytics
Transparency
basic

Site quality

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

Key observations

  1. Official city government website for Brno, Czech Republic
  2. Content is comprehensive, well-structured, and professionally presented
  3. Uses Liferay CMS platform with modern frontend technologies
  4. Includes multiple external trusted links related to city services and information
  5. Privacy policy is present and GDPR compliant
  6. No cookie consent banner detected, which could be improved
  7. No explicit security or incident response policies published
  8. WHOIS data is not publicly available, consistent with CZ.NIC policies
  9. No signs of malicious or suspicious content
  10. Site is fully accessible with no WAF blocking
Technical notes

Notes

The website is built on the Liferay CMS platform, utilizing modern JavaScript libraries including jQuery 3.6.0, React 16.12.0, and ClayUI components. It integrates Matomo analytics configured to respect user privacy by disabling cookies and honoring DoNotTrack signals. The site uses YUI 3 and Metal.js libraries, indicating a hybrid legacy and modern frontend stack. The HTML structure is semantically sound with accessibility considerations such as ARIA labels and skip links. The site is mobile optimized with responsive CSS and adaptive images. Performance is moderate, with potential improvements in resource loading and caching. No critical technical debt or deprecated technologies were detected, but some legacy scripts remain. Overall, the technical infrastructure supports a robust and scalable municipal web presence.
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

Earlier scans of this domain

  1. 73/100 +1Medium26 findingsView report
  2. 72/100Medium26 findingsView report
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