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Security report for televizeseznam.cz

Seznam.cz a.s. · Media · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view and Security headers.

Security score

61/100

Risk levelMedium

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

Televize Seznam is a Czech online media and streaming platform operated by Seznam.cz a.s., providing daily news, entertainment, and live TV streaming services. The website targets the general Czech public with a focus on delivering up-to-date information and engaging content. The platform is well-established with a strong brand presence and consistent content quality. Technically, the site employs modern JavaScript frameworks, integrates Google Tag Manager and Gemius analytics, and supports multiple platforms including web and mobile apps. Security measures include HTTPS enforcement and standard security headers, contributing to a solid security posture. Privacy compliance is evident through comprehensive privacy and cookie policies aligned with GDPR requirements. Overall, the site presents a professional and trustworthy digital presence with moderate to good performance and user experience.

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

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 televizeseznam.cz

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  • TLS certificates and expiry
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  • Security headers
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  • 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
95
Security headers
15
Email security
70
DNS health
75
Network security
100
GDPR outside view
10
Average
61

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 business operates in the media sector, leveraging its position as a leading Czech online content provider. Its business model centers on advertising revenue, live streaming, and content archiving. The company benefits from a broad partnership ecosystem including other Seznam.cz services and external media outlets. The presence of apps on iOS and Android platforms indicates a multi-channel distribution strategy. The company targets a wide audience, including news consumers and entertainment seekers, with a focus on Czech language content. Growth indicators include active social media engagement and continuous content updates. The lack of WHOIS data is a minor concern but does not detract from the company's established market presence.

Security posture

The website demonstrates a mature security posture with HTTPS enabled and multiple security headers implemented. There is no evidence of exposed sensitive data or vulnerable libraries in the provided content. The use of third-party analytics and advertising scripts is standard but should be regularly audited to mitigate supply chain risks. The absence of a public security policy or incident response page suggests an area for improvement in transparency and preparedness. Overall, the site is secure for users and aligns with common best practices, though enhancements in accessibility and explicit security communications could strengthen trust.

Recommendations

  1. Publish a dedicated security policy and incident response information to improve transparency.
  2. Enhance accessibility features to meet higher standards and improve user inclusivity.
  3. Regularly audit third-party scripts and dependencies for vulnerabilities.
  4. Consider adding a vulnerability disclosure program or security.txt file.
  5. Maintain and update privacy and cookie consent mechanisms to ensure ongoing GDPR compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Seznam.cz a.s.
Description
Televize Seznam denně informuje o nejzásadnějších událostech, přináší aktuality z domova i zahraničí, věnuje se významným kauzám a představuje zajímavé osobnosti.
Key services
Live TV streaming, TV program archive, News and entertainment content
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Gemius analytics, HbbTV, Custom video player
Platforms
Web, iOS app, Android app
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of security headers

Analytics and tracking

Services
Gemius, Google Analytics (via GTM)
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads, Seznam SSP
Tracking pixels
Gemius Prism, Gemius Traffic
Transparency
good

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.
  2. No WAF or blocking mechanisms detected.
  3. WHOIS data is missing or unavailable, which is unusual.
  4. Strong presence of privacy and cookie policies indicating GDPR compliance.
  5. Multiple social media and external trusted links.
  6. Use of modern tracking and advertising technologies.
  7. Good security posture with HTTPS and security headers.
  8. No signs of adult or unsafe content.
  9. Clear contact information with phone support during business hours.
  10. Professional design and consistent branding.
Technical notes

Notes

The website uses a modern JavaScript-based front end with asynchronous loading of scripts and integration of analytics and advertising technologies. It supports HbbTV for connected TV devices and offers mobile applications on major platforms. Performance is moderate with room for optimization, particularly in loading times and accessibility. The site is SEO optimized with proper meta tags and Open Graph data. No CMS is explicitly detected, suggesting a custom or proprietary solution. Hosting details are not disclosed, but the use of multiple CDN-hosted assets indicates a distributed content delivery approach. Technical risks are minimal but include dependency on third-party scripts and potential for technical debt if not regularly maintained.
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. 61/100Medium31 findingsView report
  2. 61/100Medium31 findingsView report
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