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Security report for 3sat.de

3sat / Satellitenfernsehen des deutschen Sprachraums · Media · Germany

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

65/100

Risk levelMedium

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

3sat is a well-established public broadcasting media platform serving the German-speaking audience with a focus on cultural, scientific, and societal content. The website offers video streaming, live TV, documentaries, and magazines, positioning itself as a trusted source of quality media content. It operates under the umbrella of ZDF, a major German public broadcaster, ensuring strong market presence and credibility. The platform targets a general audience interested in educational and cultural programming.

Scanned

NIS2 and GDPR posture

GDPR outside view
45/ 100 · High
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 Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  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 3sat.de

This scan found 23 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
72
Security headers
25
Email security
75
DNS health
70
Network security
100
GDPR outside view
45
Average
65

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

3sat leverages its partnership with ZDF to deliver a broad range of media services including video on demand and live streaming. Its business model is primarily public service broadcasting, funded through public means rather than commercial advertising. The website's integration with social media and mobile apps indicates a mature digital strategy aimed at maximizing reach and engagement. The presence of comprehensive privacy and cookie consent mechanisms reflects compliance with European data protection regulations, enhancing user trust.

Security posture

The website demonstrates a strong security posture with enforced HTTPS, modern security headers, and a robust consent management platform. No critical vulnerabilities or exposed sensitive data were detected. However, explicit security policies and incident response contacts are not publicly available, which could be improved to enhance transparency and readiness. The use of Akamai as a hosting provider and CDN adds to the security and performance robustness of the platform.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and user protections.
  2. Provide clear incident response contact information to facilitate reporting of security issues.
  3. Consider implementing and publishing a vulnerability disclosure policy or security.txt file.
  4. Maintain and regularly update consent management to comply with evolving privacy regulations.
  5. Enhance transparency by including terms of service or user agreements accessible from the homepage.

Contact details published on the site

Addresses
Legal name
3sat / Satellitenfernsehen des deutschen Sprachraums
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
3sat / Satellitenfernsehen des deutschen Sprachraums
Description
Videos und Livestreams in der 3satMediathek anschauen! Entdecken Sie Dokumentationen, Magazine aus Kultur, Wissenschaft, Gesellschaft und vieles mehr!
Key services
Video streaming, Livestreams, Documentaries, Cultural and scientific magazines
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML5, Web fonts (woff, ttf), ZDF Player, Consent Management Platform (CMP), Lazy loading images, Typeahead search
Frameworks
Custom ZDF/3sat JS framework, Consent Management SDK
Platforms
Web, iOS app (smartbanner), Android app (smartbanner)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Consent management for cookies and tracking
  • No exposed sensitive data in HTML
  • Use of secure player scripts
  • No visible vulnerable libraries

Analytics and tracking

Services
atInternet
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
atInternet
Marketing tools
Smartbanner for iOS and Android apps
Transparency
basic

Site quality

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

Key observations

  1. Website is a public broadcasting media platform for 3sat
  2. Comprehensive privacy and cookie consent mechanisms implemented
  3. No signs of malicious or suspicious content
  4. Strong branding and consistent user experience
  5. Use of modern web technologies and performance optimizations
  6. Clear contact information and social media presence
  7. No explicit terms of service page found
  8. No explicit security policy or incident response info found
Technical notes

Notes

The website employs a modern technology stack including custom JavaScript frameworks, lazy loading for images, and a specialized video player. Hosting on Akamai ensures high availability and performance. The site is mobile-optimized with responsive design and accessibility features. SEO is well addressed through meta tags, Open Graph, and structured JSON-LD data. No legacy or vulnerable libraries were detected, indicating good maintenance and modernization efforts.
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. 67/100Medium30 findingsView report
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