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Security report for cancerseinchl.lu

Centre Hospitalier de Luxembourg · Healthcare · Luxembourg

Medium risk. 9 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

57/100

Risk levelMedium

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

The website 'Le blog du Groupe Sein CHL' serves as an informational and support platform focused on breast cancer, operated under the auspices of the Centre Hospitalier de Luxembourg. It provides educational content, patient guidance, and wellness advice, targeting patients, caregivers, and healthcare professionals primarily in Luxembourg. The site is positioned as a specialized non-profit healthcare blog with a medium organizational size and consistent branding aligned with its parent hospital. Technically, the website is built on the Squarespace platform, leveraging modern web technologies such as Typekit fonts and Google Fonts. It demonstrates good mobile optimization and SEO practices, though performance is moderate. The absence of advanced frameworks or custom backend technologies suggests a straightforward content management approach suitable for its informational purpose. From a security perspective, the site uses HTTPS but lacks certain security headers like HSTS, which could enhance transport security. No critical vulnerabilities or exposed sensitive data were detected. However, the absence of privacy and cookie policies indicates compliance gaps, especially relevant under GDPR regulations. The WHOIS data is unavailable, limiting domain trust verification, but the website's affiliation with a reputable hospital provides strong legitimacy. Overall, the website is a trustworthy and professionally maintained resource for breast cancer information, though improvements in privacy compliance and security hardening are recommended to enhance user trust and regulatory adherence.

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

9 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. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  3. 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"

    • 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 cancerseinchl.lu

This scan found 27 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
62
Security headers
35
Email security
60
DNS health
75
Network security
100
GDPR outside view
10
Average
57

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 Centre Hospitalier de Luxembourg operates this specialized breast cancer blog to extend patient education and support beyond clinical settings. The blog's market positioning leverages the hospital's reputation, targeting a niche audience concerned with breast cancer awareness and care. The business model is non-profit, focusing on informational outreach rather than commercial activities. Revenue streams are likely indirect, supporting hospital community engagement and patient relations. The partnership ecosystem includes social media platforms for outreach but no evident commercial partners. Growth indicators include regular content updates and active social media presence. Strategic observations highlight the importance of enhancing privacy and security policies to maintain compliance and trust.

Security posture

The website exhibits a moderate security maturity level with HTTPS enabled and no visible sensitive data exposure. The lack of HSTS and security.txt files suggests room for improvement in transport security and vulnerability disclosure readiness. Compliance gaps are evident due to missing privacy and cookie policies, which are critical under GDPR and related regulations. Incident response information is absent, indicating limited preparedness for security incidents. The security culture appears basic, focused on content delivery rather than advanced security practices. No vulnerable libraries or insecure forms were detected, reducing immediate risk. Overall, the security posture is adequate for an informational site but should be enhanced to meet best practices and regulatory requirements.

Recommendations

  1. Enable HTTP Strict Transport Security (HSTS) to enforce HTTPS and protect against protocol downgrade attacks.
  2. Publish comprehensive privacy and cookie policies to ensure GDPR compliance and inform users about data handling.
  3. Implement a security.txt file or vulnerability disclosure policy to facilitate responsible reporting of security issues.
  4. Add incident response contact information to improve transparency and readiness for security events.
  5. Regularly review and update third-party scripts and dependencies to mitigate potential vulnerabilities.

Contact details published on the site

Addresses
Legal name
Centre Hospitalier de Luxembourg
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Centre Hospitalier de Luxembourg
Description
Le blog du Groupe Sein CHL, affiliated with Centre Hospitalier de Luxembourg, provides informational content focused on breast cancer, including patient support, treatment insights, and wellness advice.
Key services
Educational blog articles on breast cancer, Patient support and wellness information, Awareness and community engagement
Content quality
good
Branding
consistent

Technology

Stack
Squarespace, Typekit Fonts, YUI JavaScript Library, Google Fonts
Platforms
Squarespace CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • No exposed sensitive data detected
  • Secure form submission (no visible insecure forms)

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is a professionally designed healthcare blog focused on breast cancer.
  2. Content is in French and targeted at Luxembourg audience.
  3. No privacy or cookie policies visibly present, which is a compliance gap.
  4. WHOIS data is unavailable or malformed, limiting domain trust analysis.
  5. No security.txt or incident response information found.
  6. Social media presence is consistent with the hospital's official accounts.
  7. No advertising or tracking scripts detected, indicating privacy-conscious design.
Technical notes

Notes

The website is hosted on Squarespace, a managed platform providing reliable hosting and CMS capabilities. The tech stack includes YUI JavaScript libraries and Typekit fonts, indicating some legacy components but overall modern front-end technologies. Performance is moderate, likely influenced by image sizes and third-party assets. Mobile optimization is good, with responsive design and accessible navigation. SEO is supported by proper meta tags and structured data (JSON-LD). Accessibility features are basic, with potential for improvement in ARIA roles and keyboard navigation. Technical risks are low but include dependency on third-party services and lack of advanced security headers.
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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