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Security report for stuurmanbouw.nl

Stuurman Bouw · Real Estate · Netherlands

High risk. 11 critical or high findings in GDPR outside view, Network security and 2 other checks.

Security score

41/100

Risk levelHigh

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

Stuurman Bouw is a small, specialized construction company based in the Netherlands, focusing on residential building projects such as renovations, extensions, and kitchen pre-assembly. The company targets private individuals and architects, emphasizing quality craftsmanship and creative solutions. The website is built on Joomla CMS using modern frameworks like Bootstrap and jQuery, providing a professional and mobile-optimized user experience. Security posture is moderate with HTTPS and DNSSEC enabled, but lacks visible security headers and privacy compliance documentation. Contact information is clearly presented, enhancing business credibility. Overall, the website reflects a trustworthy local construction business with room for improvement in privacy and security policies.

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

11 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

  2. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  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 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 stuurmanbouw.nl

This scan found 29 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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Full report

€39.90one-time

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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
72
Security headers
30
Email security
70
DNS health
65
Network security
0
GDPR outside view
10
Average
41

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 · found on this site
  • 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 the real estate sector, providing construction and renovation services primarily to private clients and architects. Its business model centers on direct project management and client engagement, with a portfolio showcasing completed projects. The domain age of over a decade supports business maturity. No social media or analytics integrations suggest a focus on direct client relationships rather than broad digital marketing. The absence of privacy and cookie policies indicates potential compliance risks under GDPR. The company could benefit from formalizing security and privacy practices to strengthen trust and regulatory adherence.

Security posture

The website uses HTTPS with DNSSEC enabled, which are strong foundational security measures. However, the absence of security headers such as Content-Security-Policy and X-Frame-Options reduces protection against common web attacks. No vulnerability disclosure or incident response information is provided, limiting transparency for security issues. No forms are present on the homepage, reducing attack surface but also limiting user data collection. Overall, the security posture is moderate but could be significantly improved by implementing standard security headers and privacy policies.

Recommendations

  1. Publish a comprehensive privacy policy and cookie consent mechanism to ensure GDPR compliance.
  2. Implement standard security headers (CSP, X-Frame-Options, X-Content-Type-Options) to enhance web security.
  3. Add a security.txt file and incident response contact information to improve vulnerability disclosure and response readiness.
  4. Consider integrating analytics with privacy-respecting configurations to gain user insights while maintaining compliance.
  5. Regularly review and update CMS and third-party libraries to mitigate vulnerabilities.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Stuurman Bouw
Description
Stuurman Bouw is a construction company specializing in residential building projects including renovations, extensions, and interior modifications. The company emphasizes leadership and project management with a focus on quality craftsmanship and creative, trendy solutions. Their main clients are private individuals and architects.
Key services
Verbouw (Renovation/Extension), Renovatie (Renovation), Voormontage van keukens (Pre-assembly of kitchens), Kozijnen (Window frames)
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Bootstrap 5.3.3, Helix Ultimate Joomla Template Framework, AdvPortfolioPro, SlideshowCK
Frameworks
Joomla
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
70/100
Good practices seen
  • HTTPS enabled
  • DNSSEC enabled on domain

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 fully accessible with no blocking or WAF challenges.
  2. No privacy or cookie policies found, indicating compliance gaps.
  3. Clear and consistent branding with professional design.
  4. Contact information is prominently displayed with verified company emails and phone numbers.
  5. No social media links detected.
  6. No forms detected on the homepage or main content for direct data collection.
  7. No security.txt or vulnerability disclosure information present.
  8. Uses Joomla CMS with modern Bootstrap and jQuery libraries.
  9. No analytics or tracking scripts detected, indicating minimal user tracking.
Technical notes

Notes

The website is built on Joomla CMS with the Helix Ultimate template framework, using Bootstrap 5.3.3 and jQuery 3.7.1. It employs AdvPortfolioPro and SlideshowCK for portfolio and slideshow features. The site is mobile responsive and uses Google Fonts for typography. Performance is moderate with no evident broken elements. SEO is basic with meta viewport and charset tags present but no advanced structured data or Open Graph tags detected. Accessibility is basic with no ARIA landmarks or enhanced features observed. Hosting provider details are not explicitly available from the data.
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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