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Security report for narodni-divadlo.cz

National Theatre · Other · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

55/100

Risk levelMedium

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

The National Theatre in Prague is a prestigious cultural institution representing the Czech Republic's national identity and European cultural heritage. The website provides comprehensive information about upcoming theatre performances across various genres including drama, ballet, opera, and multimedia shows. It offers ticket sales, subscriptions, and an e-shop for related merchandise. The institution maintains partnerships with prominent companies and media outlets, reinforcing its market position as a leading national theatre. Technically, the website is built using modern web technologies such as React and Next.js, with integration of Google Analytics, Google Tag Manager, and Cookiebot for analytics and privacy compliance. The site is mobile-optimized and provides a good user experience with clear navigation and rich content. However, some areas such as explicit privacy policy and security headers could be improved. From a security perspective, the site enforces HTTPS and uses cookie consent mechanisms, but lacks visible security headers and explicit incident response or vulnerability disclosure information. No critical vulnerabilities or exposed sensitive data were detected. The absence of WHOIS data limits the ability to fully verify domain registration legitimacy, but the presence of official partners and professional content supports trustworthiness. Overall, the website is a well-maintained digital presence for a major cultural institution, with moderate to good security posture and privacy compliance. Strategic improvements in transparency, security headers, and contact information would enhance trust and compliance.

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

7 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

  2. 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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

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

Keep watching narodni-divadlo.cz

This scan found 20 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
0
Security headers
80
Email security
60
DNS health
80
Network security
100
GDPR outside view
10
Average
55

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 National Theatre operates as a cultural institution focused on delivering high-quality theatrical performances and cultural events. Its business model centers on ticket sales, subscriptions, and merchandise through an integrated e-shop. The theatre targets a broad audience including local and international visitors interested in performing arts. Partnerships with financial institutions, automotive companies, beverage brands, and media outlets indicate a strong sponsorship and support ecosystem. The theatre's market position is that of a flagship national cultural entity with a large operational scale. Growth indicators include a diverse programme and active engagement with audiences via online ticketing and digital content.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enforced and cookie consent implemented. However, the lack of explicit security headers such as Content-Security-Policy and absence of published security policies or incident response contacts indicate areas for improvement. No vulnerabilities or exposed sensitive data were found in the HTML content. Compliance with GDPR is partially indicated by cookie consent but lacks a clear privacy policy. The security culture appears to be basic but functional, suitable for a cultural institution but with room for enhancement in transparency and technical controls.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service to improve transparency and compliance.
  2. Implement and configure security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Provide clear contact information for security incidents and consider publishing a security.txt file.
  4. Enhance accessibility features to improve inclusivity for all users.
  5. Regularly review and update third-party scripts and libraries to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
National Theatre
Description
The National Theatre is the representative stage of the Czech Republic. It is one of the symbols of national identity and part of the European cultural space.
Key services
Theatre performances (Drama, Ballet, Opera, Laterna magika), Ticket sales and subscriptions, Information services for visitors including parking and accessibility
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Analytics, Google Tag Manager, Cookiebot
Frameworks
Next.js, React
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of cookie consent mechanism
  • No exposed sensitive data detected in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Marketing tools
Cookiebot
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content about theatre performances and events.
  2. No WHOIS data available, indicating privacy protection or registry issues.
  3. Use of modern web technologies and analytics tools.
  4. Cookie consent mechanism implemented.
  5. No explicit privacy policy or terms of service found in the provided content.
  6. Multiple partner and sponsor logos indicate established business relationships.
  7. No contact emails or phone numbers explicitly found in the HTML content.
  8. No security.txt or vulnerability disclosure policy detected.
  9. No incident response or security policy information found.
  10. Website content is safe and suitable for general audiences.
Technical notes

Notes

The website uses a modern React and Next.js framework, enabling server-side rendering and good performance. Integration with Google Analytics and Tag Manager supports data-driven insights. Cookiebot is used for GDPR-compliant cookie management. The site is mobile responsive and well-structured with semantic HTML. However, no CMS is explicitly detected, and hosting provider details are not available. Performance is moderate with deferred loading of scripts. Technical debt appears low but could be improved by adding accessibility enhancements and security headers. Overall, the technical infrastructure supports a professional and scalable digital 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

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