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Security report for concreton.be

Concreton · Manufacturing · Belgium

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

Security score

71/100

Risk levelMedium

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

Concreton is a Belgian medium-sized manufacturing company specializing in prefabricated reinforced and prestressed concrete elements such as columns and beams. Established in 2000 and part of the Willy Naessens Group, it holds multiple certifications including BENOR, CE, NF, and the CSC sustainability certificate, positioning it as a reputable player in the construction materials sector. The website is professionally designed with clear navigation and multilingual support, targeting construction professionals and clients seeking durable concrete solutions. Technically, the site uses modern web technologies and includes a cookie consent mechanism, though SEO metadata is minimal and no CMS is detected. Security posture is adequate with HTTPS implied and no visible vulnerabilities, but lacks explicit security headers and incident response contacts. Overall, the site reflects a trustworthy and compliant business presence with room for technical and security enhancements.

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 concreton.be

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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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
72
Security headers
55
Email security
85
DNS health
85
Network security
100
GDPR outside view
28
Average
71

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

Concreton operates in the manufacturing sector focused on construction materials, specifically prefabricated concrete elements. Its competitive advantage lies in specialization in high-strength concrete and custom prefabrication, enabling shorter construction times and weather-independent assembly. The company benefits from strong certifications and sustainability commitments, enhancing market trust. Its business model revolves around B2B sales to construction firms and architects. The parent company, Willy Naessens Group, provides brand strength and resource backing. The website ecosystem includes partner domains for product details and recruitment, indicating a well-integrated digital presence. Growth indicators include active job postings and sustainability initiatives. Strategic observations suggest opportunities to improve digital marketing and incident response visibility.

Security posture

The website demonstrates a moderate security maturity level with HTTPS usage and a cookie consent mechanism aligned with GDPR. Certifications like CSC indicate a commitment to sustainability and responsible production but do not directly reflect IT security. No explicit security headers or incident response contacts were found, representing a compliance gap. The absence of analytics and tracking scripts reduces privacy risks but also limits user behavior insights. No vulnerabilities or exposed sensitive data were detected in the HTML content. The security posture would benefit from enhanced HTTP headers, documented incident response procedures, and regular third-party script audits to mitigate supply chain risks. Overall, the security culture appears cautious but could be more mature and transparent.

Recommendations

  1. Implement comprehensive HTTP security headers such as Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, and X-Content-Type-Options.
  2. Publish explicit incident response and abuse contact information to improve transparency and readiness.
  3. Conduct regular security audits of third-party scripts and libraries to identify and mitigate vulnerabilities.
  4. Enhance website accessibility features to comply with WCAG standards and improve user experience for all visitors.
  5. Expand SEO metadata and structured data to improve search engine visibility and digital marketing effectiveness.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Concreton
Description
Concreton is a young and dynamic company based in Geraardsbergen since 2000, specializing in the production of columns and beams in reinforced and prestressed concrete, including custom prefabricated elements. They focus on high-strength concrete classes and offer prefabrication to reduce construction times and weather dependency.
Key services
Production of columns in reinforced concrete, Production of beams in reinforced concrete, Custom prefabricated concrete elements
Content quality
good
Branding
consistent

Technology

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

Security

Observed score
75/100
Good practices seen
  • HTTPS implied by URL
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • Use of modern JS libraries

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

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 Dutch.
  2. Cookie consent modal is implemented with detailed cookie categories.
  3. Contact information is clearly presented in the footer with phone, email, and physical address.
  4. Multiple certifications and sustainability commitments are prominently displayed.
  5. No security.txt or explicit incident response contacts found.
  6. No analytics or tracking scripts detected, indicating privacy-conscious design.
  7. No social media links except LinkedIn present.
  8. No visible advertising or marketing tracking tools.
  9. Technical stack is modern but no CMS or advanced frameworks detected.
  10. SEO metadata is minimal; meta description and keywords are empty.
Technical notes

Notes

The website is built using standard HTML5, CSS3, and JavaScript with external libraries like Font Awesome, Ion Icons, and Plyr for media playback. No CMS or advanced frameworks were detected, suggesting a custom or lightweight platform. Hosting is likely provided by One.com A/S, a known registrar and hosting provider. Performance is moderate with some preloading of fonts and deferred script loading. Mobile optimization is good with viewport meta tags and responsive design elements. SEO is basic with empty meta keywords and description tags, limiting organic search potential. Accessibility is basic with some ARIA roles and language attributes but could be improved. The technical stack is stable but could benefit from modernization and enhanced SEO and accessibility practices.
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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