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Security report for rtl.lu

RTL Lëtzebuerg · Media · Luxembourg

Low risk. 3 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

78/100

Risk levelLow

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

RTL Lëtzebuerg operates as a prominent media company in Luxembourg, delivering news, television, radio, and digital content primarily to a Luxembourgish audience. The website demonstrates a mature digital presence with multi-platform support including web, iOS, and Android apps. It leverages modern technologies such as video players, consent management tools, and extensive analytics to optimize user engagement and advertising revenue. Security posture is strong with HTTPS enforcement and standard security headers, though some advanced security policies and incident response information are not publicly disclosed. Privacy compliance is well addressed with GDPR-aligned consent mechanisms and comprehensive privacy policies. The absence of WHOIS data limits domain registration trust analysis but does not detract from the professional and trustworthy nature of the site. Overall, RTL Lëtzebuerg presents a reliable and well-maintained media platform with good technical and security standards.

Scanned

This is an earlier scan of rtl.lu. View the latest report

NIS2 and GDPR posture

GDPR outside view
80/ 100 · Low
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

3 findings rated critical or high. Fix these first.

  1. 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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

  3. 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.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching rtl.lu

This scan found 18 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
67
Security headers
40
Email security
95
DNS health
85
Network security
100
GDPR outside view
80
Average
78

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

RTL Lëtzebuerg holds a leading position in Luxembourg's media landscape, offering a broad range of services including news, television, radio, and digital streaming. Its business model is primarily advertising-driven, supported by partnerships with major ad networks and analytics providers. The company targets a general audience in Luxembourg with multilingual sister sites expanding reach. The digital infrastructure supports app integration and advanced user tracking for personalized content delivery and marketing. While direct contact information is not prominently displayed, the site maintains strong brand consistency and trust signals. The partnership ecosystem includes related RTL domains serving different language audiences and streaming services, enhancing market penetration and user engagement.

Security posture

The website exhibits a solid security foundation with HTTPS, HSTS, CSP, and other security headers implemented. Consent management via Didomi ensures GDPR compliance and user privacy controls. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the absence of a public security policy, incident response contacts, and vulnerability disclosure mechanisms such as security.txt indicates room for improvement in transparency and readiness. The use of multiple third-party scripts necessitates ongoing security audits to mitigate supply chain risks. Overall, the security posture is good but could be enhanced by publishing explicit security governance documents and improving accessibility compliance.

Recommendations

  1. Publish a security.txt file to facilitate vulnerability reporting and improve transparency.
  2. Add a dedicated security policy and incident response page with clear contact channels.
  3. Enhance website accessibility features to meet WCAG standards more comprehensively.
  4. Regularly review and update third-party scripts to minimize potential vulnerabilities.
  5. Consider providing clearer company contact information to improve business credibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
RTL Lëtzebuerg
Description
RTL Lëtzebuerg is a media company providing news, television, radio, and online content primarily targeting Luxembourg and surrounding regions.
Key services
News publishing, Television broadcasting, Radio broadcasting, Online streaming and digital content
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Video.js, Didomi Consent SDK, Google Analytics, OneSignal Push Notifications, Adnuntius Ads, Permutive Analytics, Gigya SSO
Frameworks
Theoplayer (video player), Didomi (consent management)
Platforms
Web, iOS App, Android App
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management for GDPR compliance
  • Use of service workers for push notifications
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Gemius, Permutive
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Adnuntius, Google DoubleClick, Gemius
Tracking pixels
Gemius, Permutive, Didomi, OneSignal
Marketing tools
Gigya SSO, Didomi Consent SDK, Permutive
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 and no blocking detected.
  2. WHOIS data is unavailable or malformed, limiting domain registration analysis.
  3. Strong use of third-party analytics and advertising networks with consent management.
  4. No direct company contact emails or phone numbers found on the homepage HTML.
  5. No explicit security or incident response policies published on the main site.
  6. Good GDPR compliance with consent banners and privacy policy in French.
  7. Website targets Luxembourgish audience with multilingual options via partner sites.
  8. Mobile and app support is evident with specific app detection scripts.
  9. No suspicious or malicious content detected.
Technical notes

Notes

The website uses a modern tech stack including JavaScript frameworks, video players, and consent management SDKs. It integrates multiple analytics and advertising services to optimize monetization and user insights. The site is mobile-optimized and supports app environments with device detection scripts. Performance is moderate with preloading and preconnecting techniques employed. SEO is supported by proper meta tags and Open Graph data. However, the CMS and hosting provider details are not explicitly identified. Accessibility is basic and could be improved. The technical infrastructure is robust but would benefit from enhanced documentation and security transparency.
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. 75/100Medium27 findingsView report
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