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Security report for zusopen.cz

Nadační fond Magdaleny Kožené · Non-profit · Czech Republic

High risk. 9 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

45/100

Risk levelHigh

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

ZUŠ OPEN is a prominent cultural event organized by the Nadační fond Magdaleny Kožené, focusing on celebrating and sharing the joy of art across the Czech Republic. The website serves as an information hub for the event, providing program details, news, galleries, and support for participating schools. The target audience includes the general public, families, and educational institutions interested in music, dance, theater, and visual arts. The organization holds a strong market position as a leading non-profit cultural event in the region. Technically, the website employs modern web technologies including Google Analytics for traffic analysis and a cookie consent management system by VIZUS. The site is built on the VIZUS CMS platform and features responsive design with good mobile optimization. Performance is moderate with room for improvement in SEO and accessibility features. From a security perspective, the site uses HTTPS and implements a cookie consent banner with granular user controls, indicating awareness of privacy compliance. However, the absence of visible security headers and lack of a published privacy policy or terms of service pages represent areas for enhancement. No WHOIS data is available, which limits domain registration trust verification but the website content and branding appear professional and consistent with a reputable non-profit organization. Overall, the website is well-designed and functional, with good content quality and user experience. Strategic improvements in privacy documentation, security headers, and domain registration transparency would strengthen trust and compliance posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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';…

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

Keep watching zusopen.cz

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.

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
62
Security headers
20
Email security
55
DNS health
85
Network security
20
GDPR outside view
25
Average
45

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention zusopen.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for zusopen.cz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

ZUŠ OPEN operates as a non-profit cultural event organizer under the Nadační fond Magdaleny Kožené. It leverages partnerships with media entities like Česká televize and Český rozhlas to enhance visibility. The business model centers on event organization, cultural promotion, and educational outreach. The target customers are schools, students, families, and the general public interested in arts and culture. Growth indicators include annual event iterations and expanding program archives. The partnership ecosystem includes foundations, media partners, and educational institutions. The organization's operations emphasize cultural enrichment and community engagement within the Czech Republic.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enforced and a cookie consent mechanism in place. However, the lack of security headers such as Content-Security-Policy and absence of published security or privacy policies indicate gaps in comprehensive security practices. No vulnerabilities or exposed sensitive data were detected in the analyzed content. Incident response readiness and data protection officer contact information are not publicly available, which may impact compliance with GDPR and related regulations. Overall, the security posture is adequate for a non-profit cultural site but could benefit from enhanced documentation and technical controls.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service pages to improve transparency and compliance.
  2. Implement standard security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Provide clear contact information for security incidents and designate a data protection officer if applicable.
  4. Enhance SEO and accessibility features to improve user experience and reach.
  5. Ensure WHOIS data is publicly available or provide justification for privacy protection to increase domain trustworthiness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Nadační fond Magdaleny Kožené
Description
ZUŠ OPEN is a project of the Nadační fond Magdaleny Kožené implemented by its service organization Umělecké vzdělávání s.r.o., in cooperation with AZUŠ ČR. It is the largest cultural event celebrating and sharing the joy of art across the Czech Republic, featuring music, dance, theater, exhibitions, and workshops organized by basic art schools.
Key services
Organizing cultural events and festivals, Providing information and support for participating schools, Media partnerships and promotion
Content quality
good
Branding
consistent

Technology

Stack
Google Analytics, VIZUS Cookie Consent, Swiper.js (slider), CSS3, JavaScript
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with granular controls

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

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 rich content and multimedia elements.
  2. No WHOIS data available, limiting domain registration trust analysis.
  3. Cookie consent mechanism is implemented with detailed category controls.
  4. No explicit privacy policy or terms of service pages found.
  5. No direct contact emails or phone numbers found on the homepage.
  6. Social media presence is active with Facebook, YouTube, and Instagram links.
  7. Website uses HTTPS and Google Analytics for traffic measurement.
  8. No visible security headers detected in the HTML content.
  9. No forms detected on the homepage for data collection.
  10. Content is focused on cultural events and education, safe for general audiences.
Technical notes

Notes

The website is built using the VIZUS CMS platform with integration of Google Analytics and a cookie consent management system. The front-end uses modern CSS and JavaScript, including the Swiper.js library for sliders. The site is responsive and optimized for mobile devices with moderate performance. There is no evidence of outdated or vulnerable libraries in the provided content. Technical debt appears low, but improvements in SEO meta tags and accessibility attributes could be made. Hosting provider details are not disclosed. Overall, the technical infrastructure supports the business needs effectively with opportunities for modernization and enhanced security.
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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