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Security report for chateau-clisson.fr

Château de Clisson · Government · France

Medium risk. 5 critical or high findings in Email security, Security headers and 2 other checks.

Security score

68/100

Risk levelMedium

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

The Château de Clisson website serves as the official digital presence for a French heritage site managed by the Department of Loire-Atlantique. It provides comprehensive visitor information, event calendars, ticketing options, and cultural highlights aimed at tourists and heritage enthusiasts. The site is well-branded with official logos and certifications, reinforcing its legitimacy and trustworthiness. Technically, the website is built on the Jalios JCMS platform, leveraging modern web technologies including Google Tag Manager and Analytics for user insights, and Orejime for cookie consent management. The site is mobile-optimized, accessible, and SEO-friendly, offering a good user experience with clear navigation and relevant content. From a security perspective, the site enforces HTTPS and employs cookie consent mechanisms, but lacks explicit security headers and a public security policy or incident response contact. No vulnerabilities or exposed sensitive data were detected in the HTML content. WHOIS data is unavailable, likely due to privacy protection, but the domain and website content align with a legitimate government-managed heritage site. Overall, the website presents a low-risk profile with strong business credibility and good privacy compliance. Strategic improvements include enhancing security headers, publishing a security policy, and adding vulnerability disclosure information to further strengthen trust and security posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 100 · Medium
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

5 findings rated critical or high. Fix these first.

  1. 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

  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 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';…

  3. 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

  4. 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 chateau-clisson.fr

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.

Daily monitoring

Recommended

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

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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
55
Email security
60
DNS health
60
Network security
100
GDPR outside view
68
Average
68

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 Château de Clisson operates as a government-managed cultural heritage site focused on tourism and education. Its market position is regional with strong official backing from the Loire-Atlantique department. The business model relies on public funding supplemented by visitor services such as ticket sales and guided tours. The website supports this model by providing detailed visitor information, event calendars, and online ticketing. Partnerships with other heritage sites and cultural institutions enhance its ecosystem and visitor appeal. The presence of certifications and positive social media and review platform integration indicate a well-established and trusted entity within its sector.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and comprehensive cookie consent management aligned with GDPR requirements. However, it lacks some advanced security best practices such as HTTP security headers (CSP, X-Frame-Options) and publicly available security or incident response policies. No signs of vulnerabilities or sensitive data exposure were found. The absence of a security.txt or vulnerability disclosure policy is a gap that could be addressed to improve transparency and incident handling readiness. Overall, the security posture is good but could benefit from these enhancements to align with best practices for public-facing government websites.

Recommendations

  1. Implement HTTP security headers including Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to mitigate common web attacks.
  2. Publish a clear security policy and incident response contact information on the website to improve transparency and user trust.
  3. Add a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  4. Continue monitoring and updating third-party scripts and libraries to avoid introducing vulnerabilities.
  5. Enhance data retention and privacy policy details to explicitly state analytics data handling and retention periods.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Château de Clisson
Description
Official website for the Château de Clisson, a heritage site managed by the Department of Loire-Atlantique, providing visitor information, event calendars, ticketing, and cultural highlights.
Key services
Visitor information, Event calendar, Ticketing, Guided tours, Educational resources
Content quality
good
Branding
consistent

Technology

Stack
Jalios JCMS, Google Tag Manager, Google Analytics, Orejime cookie manager, Swiper carousel
Frameworks
Jalios JCMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent management
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

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 no blocking or WAF challenges
  2. Content is professionally presented and relevant to cultural heritage tourism
  3. Strong privacy and cookie consent mechanisms implemented
  4. No exposed sensitive data or security vulnerabilities detected in HTML
  5. WHOIS data unavailable, likely due to privacy protection or AFNIC policies
  6. Multiple official certifications and trust signals present
  7. Social media and review platform integration enhances trust
  8. No security.txt or incident response info found, an area for improvement
Technical notes

Notes

The website is built on Jalios JCMS, a specialized content management system for cultural and heritage sites, indicating a tailored platform choice. It uses modern JavaScript libraries and Google services for analytics and tag management. The site is mobile responsive and accessible, with good SEO practices including meta tags and Open Graph data. Performance is moderate, likely due to rich media content and external dependencies. There is no explicit hosting provider information, but the domain uses HTTPS with a valid certificate. The technical stack is appropriate for the site's purpose, though opportunities exist to improve security headers and optimize performance further.
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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