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Security report for willynaessens.fr

Willy Naessens Bâtiments Industriels · Manufacturing · France

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

69/100

Risk levelMedium

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

Willy Naessens Bâtiments Industriels is a leading French company specializing in the construction of industrial buildings, boasting over 10,000 completed projects. The company operates with a vertically integrated business model, managing all construction phases internally, including prefabricated concrete production. Their innovative approach includes the 'The Circle' concept, emphasizing circular construction principles. The website is professionally designed, mobile-optimized, and provides comprehensive information about their services and sectors served, targeting SMEs, logistics, distribution, agro-food, and public projects. Technically, the site uses modern web technologies and is hosted with reputable providers, ensuring good performance and SEO optimization. Security posture is strong with HTTPS and cookie consent mechanisms, though some advanced security headers and explicit security policies are absent. WHOIS data confirms domain legitimacy and consistency with the business profile. Overall, the site reflects a mature, credible industrial construction business with good digital maturity.

Scanned

NIS2 and GDPR posture

GDPR outside view
28/ 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

7 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 willynaessens.fr

This scan found 20 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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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
75
Security headers
55
Email security
85
DNS health
70
Network security
100
GDPR outside view
28
Average
69

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 holds a strong market position as a leader in industrial building construction in France, supported by a large portfolio and vertical integration that offers competitive advantages in quality, price, and delivery times. Their business model focuses on tailored construction solutions and sustainability, aligning with ESG principles. The presence of subsidiaries and acquisitions like Gosseye s.a. and Pool Conception indicates growth and diversification. Their target customers span multiple sectors including SMEs, logistics, production plants, and public projects, suggesting a broad market reach. The company actively promotes job opportunities and maintains a solid social media presence, enhancing brand visibility and recruitment efforts.

Security posture

The website demonstrates a good security posture with enforced HTTPS, cookie consent with granular user controls, and no visible exposure of sensitive data. However, the absence of a published security policy, incident response contacts, and vulnerability disclosure mechanisms indicates room for improvement in transparency and readiness. No vulnerable or deprecated libraries were detected, and no critical security issues were found. The site would benefit from implementing additional security headers such as Content-Security-Policy and X-Frame-Options to further harden defenses. Overall, the security maturity is solid but could be enhanced with formal documentation and incident response details.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement and publish a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  4. Add advanced security headers (CSP, X-Frame-Options, HSTS) to improve protection against common web attacks.
  5. Enhance accessibility features to meet higher compliance standards and improve user experience for all visitors.

Contact details published on the site

Addresses
Legal name
Willy Naessens Bâtiments Industriels
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Willy Naessens Bâtiments Industriels
Description
Leader du marché en construction de bâtiments industriels avec plus de 10,000 réalisations, offrant des services sur mesure avec intégration verticale complète.
Key services
Construction de bâtiments industriels, Production de béton préfabriqué, Gestion intégrée de projets, Solutions circulaires innovantes (The Circle concept)
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Plyr video player, Font Awesome, Ion Icons
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent modal with granular controls
  • No exposed sensitive data in HTML
  • No deprecated or vulnerable libraries detected

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Marketing tools
Appcnctr (loadmore.js script)
Transparency
basic

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 in French.
  2. Strong focus on industrial building construction with vertical integration.
  3. Good privacy and cookie compliance with user consent mechanisms.
  4. No explicit security policy or incident response contacts found.
  5. Social media presence is active and consistent with brand.
  6. Technical implementation is modern but lacks some advanced security headers.
  7. WHOIS data supports legitimacy and domain age matches business claims.
Technical notes

Notes

The website is built using modern HTML5, CSS3, and JavaScript technologies, including the Plyr video player and icon fonts like Font Awesome and Ion Icons. It is hosted on infrastructure registered with One.com and uses Cloudflare DNS services, indicating reliable hosting and DNS management. The site is mobile-optimized with responsive images and layouts, and SEO practices are well implemented with meta tags and canonical URLs. Performance is moderate, with some external scripts loaded from third-party domains. No CMS was explicitly detected, suggesting a custom or proprietary platform. Technical risks are minimal, but the site could improve by adding accessibility enhancements and optimizing loading times 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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