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Security report for concert-systemes.com

Concert Systemes · Other · France

High risk. 9 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

47/100

Risk levelHigh

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

Concert Systemes is a French audiovisual technical service provider specializing in sound, lighting, structures, video, and event engineering for spectacles and events. The company offers services including technical assistance, rental, sales, and installation, targeting event organizers and audiovisual professionals primarily in France. The website is built on Joomla CMS and incorporates modern web technologies such as Bootstrap and jQuery, with Google Analytics for visitor tracking. The site is accessible, mobile-optimized, and includes a cookie consent mechanism, but lacks privacy and terms of service pages. Security posture is moderate with HTTPS enabled but missing key security headers and no visible incident response or data protection policies. WHOIS data is missing or indicates the domain may not be registered, which raises concerns about domain legitimacy despite the professional appearance of the website and business. Overall, the site demonstrates a good level of content quality and business credibility but requires improvements in security and compliance documentation.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 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

9 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 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';…

  2. GDPR outside view

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

    • 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

    • 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

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

Keep watching concert-systemes.com

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
72
Security headers
20
Email security
70
DNS health
65
Network security
20
GDPR outside view
35
Average
47

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 company operates in a niche market providing specialized audiovisual and event technical services. It holds recognized industry certifications and is a member of a national audiovisual professionals syndicate, enhancing its trustworthiness. The business model focuses on service provision including rental and installation, targeting event organizers and production companies. The website's content and structure support this positioning, though the lack of direct contact details on the homepage may limit immediate customer engagement. The absence of WHOIS registration data is a notable anomaly that should be investigated further. The company appears to be a small-sized entity operating primarily in France with a consistent brand presence online.

Security posture

The website uses HTTPS, which is a fundamental security requirement. However, it lacks important security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options, which could expose it to common web vulnerabilities. No evidence of exposed sensitive data or vulnerable libraries was found, but the absence of privacy policy and incident response information indicates gaps in compliance and security readiness. The cookie consent banner is a positive indicator of privacy awareness. Overall, the security maturity is moderate but could be significantly improved by implementing recommended headers, publishing privacy and security policies, and establishing clear incident response channels.

Recommendations

  1. Implement comprehensive privacy policy and terms of service pages to improve compliance and user trust.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common attacks.
  3. Verify and update WHOIS registration information to ensure domain legitimacy and transparency.
  4. Publish incident response and data protection policies including contact channels for security issues.
  5. Regularly update Joomla CMS and all plugins to mitigate vulnerabilities and maintain security posture.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Concert Systemes
Description
Equipements Son/Eclairage et technique audiovisuelle pour le spectacle et l’événementiel. Prestation technique, location avec ou sans assistance, étude, vente et installation.
Key services
Engineering spectacle and event, Technical services, Rental with or without assistance, Sales and installation, Sound systems, Lighting, Structures and rigging, Video and decoration
Content quality
good
Branding
consistent

Technology

Stack
Joomla CMS, jQuery, Bootstrap, Font Awesome, Google Fonts, Google Analytics, Slider Revolution
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
70/100
Good practices seen
  • HTTPS enabled
  • Cookie consent banner implemented

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF detected
  2. Content is in French and targeted at audiovisual event services
  3. No privacy policy or terms of service pages found
  4. Cookie consent banner is present and functional
  5. WHOIS data is missing or domain appears unregistered, which is suspicious
  6. No direct contact emails or phone numbers found on homepage
  7. Social media links to Facebook and YouTube are present
  8. Uses Joomla CMS with common web technologies
  9. No explicit security headers detected in HTML content
  10. Google Analytics is used for tracking
Technical notes

Notes

The website is built on Joomla CMS with a modern front-end stack including Bootstrap, jQuery, and Font Awesome. It uses Slider Revolution for dynamic content presentation and Google Fonts for typography. Google Analytics is integrated for visitor tracking. The site is mobile responsive and has a clear navigation structure. Performance is moderate with no major issues detected. However, the absence of advanced accessibility features and SEO optimizations suggests room for improvement. Hosting provider details are not discernible from the content. Overall, the technical infrastructure supports the business needs but would benefit from modernization and enhanced security configurations.
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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