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Security report for ceskatelevize.cz

Česká televize · Media · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

62/100

Risk levelMedium

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

Česká televize is the Czech Republic's public television broadcaster, providing a wide range of content including live TV streaming, news, sports, cultural, educational, and children's programming. It operates multiple branded channels such as ČT1, ČT2, ČT24, ČT sport, Déčko, ČT art, and ČT edu, serving a broad general audience primarily within the Czech Republic. The business model is based on public funding through TV license fees, positioning it as a leading media entity in the country. Technically, the website employs a modern web stack including jQuery, Modernizr, Google Tag Manager, and analytics tools like Gemius and Microsoft Clarity. It is well-optimized for mobile devices, accessible, and SEO-friendly. The site uses HTTPS with strong SSL configuration and implements cookie consent mechanisms aligned with GDPR requirements. From a security perspective, the site demonstrates good practices such as HTTPS enforcement, consent management, and no visible vulnerabilities or exposed sensitive data. However, explicit security headers like X-Frame-Options and X-Content-Type-Options are not clearly present and could be improved. No dedicated security policy or incident response contact information is publicly available, and no vulnerability disclosure or security.txt file was found. Overall, the website is professional, trustworthy, and safe for general audiences. The lack of WHOIS data is mitigated by the site's official nature and consistent branding. Strategic recommendations include enhancing security header implementation, publishing incident response details, and establishing a vulnerability disclosure policy to further strengthen security 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

8 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 ceskatelevize.cz

This scan found 25 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
77
Security headers
15
Email security
85
DNS health
70
Network security
100
GDPR outside view
25
Average
62

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

Česká televize holds a dominant position as the Czech public broadcaster with a comprehensive portfolio of channels and services targeting a wide demographic. Its competitive advantage lies in its public funding model, extensive content library, and strong brand recognition. Revenue streams primarily come from TV license fees and government support, supplemented by e-commerce via its official e-shop. The broadcaster maintains a robust partnership ecosystem through its various subdomains dedicated to news, sports, education, and culture. Growth indicators include digital streaming expansion and multi-platform presence. The company operates transparently with clear contact points and privacy policies, reinforcing its market credibility.

Security posture

The security maturity of Česká televize's website is solid, with HTTPS enforced and modern consent management in place. The use of reputable analytics and marketing tools is balanced with user privacy considerations. No critical vulnerabilities or exposed sensitive data were detected. However, the absence of explicit security headers and incident response information suggests room for improvement in defense-in-depth and transparency. Compliance with GDPR is evident through privacy and cookie policies. The lack of a public vulnerability disclosure channel may limit external security collaboration. Overall, the security posture is good but could benefit from enhanced policy visibility and technical hardening.

Recommendations

  1. Implement and explicitly configure security headers such as X-Frame-Options and X-Content-Type-Options to mitigate clickjacking and MIME sniffing risks.
  2. Publish a clear security policy and incident response contact information on the website to improve transparency and readiness.
  3. Establish a vulnerability disclosure program, including a security.txt file, to encourage responsible reporting of security issues.
  4. Regularly audit and update third-party scripts and analytics tools to minimize potential vulnerabilities.
  5. Continue enhancing GDPR compliance by maintaining up-to-date consent mechanisms and clear data retention policies.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Česká televize
Description
Česká televize is the Czech public television broadcaster offering online streaming, news, sports, weather, and a video archive of programs across multiple channels including ČT1, ČT2, ČT24, ČT sport, and others.
Key services
Live TV streaming, Video on demand (iVysílání), News and current affairs (ČT24), Sports coverage (ČT sport), Children's programming (Déčko), Cultural and educational content (ČT art, ČT edu)
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Modernizr, Google Tag Manager, Gemius Audience Analytics, Microsoft Clarity, CMP (Consent Management Platform)
Platforms
Web
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management for cookies
  • No exposed sensitive data in HTML
  • Secure forms with input validation

Analytics and tracking

Services
Google Analytics, Gemius Audience, Microsoft Clarity
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google DoubleClick
Tracking pixels
Gemius Audience, Microsoft Clarity
Marketing tools
GetSiteControl
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking detected.
  2. WHOIS data is unavailable or protected, common for public entities.
  3. Strong privacy and cookie policy presence with consent management.
  4. Multiple official social media channels linked.
  5. Use of modern analytics and marketing tools with consent.
  6. No security policy or incident response info explicitly found.
  7. No vulnerability disclosure or security.txt found.
  8. Contact info includes official email and phone number.
  9. Website is mobile optimized and accessible.
  10. Content is safe and suitable for general audiences.
Technical notes

Notes

The website is built on a mature and widely supported technology stack including jQuery and Modernizr, ensuring compatibility and feature detection. It leverages Google Tag Manager for flexible analytics deployment and integrates multiple analytics platforms for audience measurement. The site is mobile-optimized with responsive CSS and accessibility features, providing a good user experience across devices. Performance is moderate, with room for optimization in image delivery and script loading. The absence of a detected CMS suggests a custom or proprietary platform. Hosting details are not explicit but the site uses multiple subdomains for content segmentation. Technical risks are low, but continuous monitoring and modernization are advisable to maintain operational stability.
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. 65/100Medium31 findingsView report
  2. 65/100Medium31 findingsView report
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