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Security report for swinkelsgrondwerken.nl

Gebr. Swinkels Grondwerken BV · Manufacturing · Netherlands

High risk. 9 critical or high findings in GDPR outside view, SSL/TLS and 2 other checks.

Security score

26/100

Risk levelHigh

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

Gebr. Swinkels Grondwerken BV is a Dutch company specializing in groundworks and road construction, serving a diverse clientele including large construction firms, municipalities, holiday parks, and private individuals. The company offers a comprehensive range of services including earthworks, supply and processing of construction materials, and foundation laying. Their market position is that of a well-established regional player with a solid reputation and trusted partnerships. The website reflects a professional and consistent brand image with clear business information and legal documentation available for visitors. Technically, the website is built on WordPress using the Elementor page builder and Blocksy theme, incorporating modern web technologies such as jQuery and Google reCAPTCHA for form security. The site is mobile optimized and performs moderately well, with good SEO and basic accessibility features. Security posture is strong with HTTPS enforced, security headers present, and no visible vulnerabilities or exposed sensitive data. However, explicit security policies and incident response information are not published. Overall, the website demonstrates a mature digital presence with good privacy compliance, including a privacy policy and cookie consent mechanism. Contact information is complete and clearly presented, enhancing business credibility. No WAF or blocking mechanisms were detected, allowing full content access. The domain registration data aligns well with the business claims, supporting legitimacy and trustworthiness. Strategic recommendations include publishing a dedicated security policy and incident response contact, enhancing accessibility, and considering a security.txt file for vulnerability disclosure to further strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
3/ 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

9 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

    • Critical

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

  2. 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.

    • Critical

      No HTTPS Encryption

      Website does not use HTTPS encryption, making all data transmission vulnerable to interception

      What to do: Implement SSL/TLS certificate and redirect all HTTP traffic to HTTPS

  3. 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

  4. 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

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

Keep watching swinkelsgrondwerken.nl

This scan found 24 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

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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
0
Security headers
15
Email security
70
DNS health
65
Network security
0
GDPR outside view
3
Average
26

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

Gebr. Swinkels operates in the construction and groundwork sector with a business model focused on providing a total package of ground, water, and road construction services. Their client base spans large construction companies, municipalities, holiday parks, and private customers, indicating a broad market reach. The company holds memberships and certifications such as Bouwend Nederland and the CO2-Prestatieladder, which enhance their competitive positioning. The website content and external links suggest active partnerships and affiliations that support business growth. Revenue streams likely derive from service contracts in construction projects. The company demonstrates a consistent branding strategy and maintains a professional online presence, signaling operational maturity and market stability.

Security posture

The website exhibits a strong security posture with HTTPS enforced and valid SSL certificates. Security best practices include the use of Google reCAPTCHA on contact forms to prevent spam and abuse, and the presence of security headers such as Content-Security-Policy. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of a published security policy or incident response information represents a compliance gap. There is no visible security.txt file or vulnerability disclosure mechanism. Overall, the site is secure for visitors and data collection but could improve transparency and readiness for security incidents.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and controls.
  2. Add incident response contact information (e.g., security@ or abuse@ email addresses).
  3. Regularly update WordPress core, themes, and plugins to mitigate vulnerabilities.
  4. Enhance website accessibility to meet WCAG standards more comprehensively.
  5. Implement a security.txt file to facilitate responsible vulnerability disclosure.

Contact details published on the site

Addresses
Legal name
Gebr. Swinkels Grondwerken BV
VAT number
NL 81 95 35 898 B01
Registration number
K.v.K. Eindhoven 17 227 450
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Gebr. Swinkels Grondwerken BV
Description
Gebr. Swinkels Grondwerken BV is a company specializing in groundworks, construction, and road building projects. They provide services including earthworks, supply and processing of various sands, fill materials, and foundation layers. Their clients include large construction companies, contractors, municipalities, holiday parks, and private individuals.
Key services
Groundworks, Road construction, Supply and processing of construction materials
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Elementor, jQuery, Contact Form 7, Google reCAPTCHA, Blocksy Theme
Frameworks
WordPress, Elementor
Platforms
WordPress CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Google reCAPTCHA on contact form
  • No exposed sensitive data in HTML
  • Use of nonce for AJAX requests

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 no blocking or WAF challenges
  2. Uses HTTPS with valid SSL certificates
  3. Contact form secured with Google reCAPTCHA
  4. Clear business contact information and legal documents available
  5. No explicit security or incident response policies published
  6. No visible analytics or tracking scripts beyond essential plugins
  7. Good branding consistency and professional design
  8. External links mostly to trusted partners and social media
Technical notes

Notes

The website is built on a modern WordPress infrastructure using the Elementor page builder and Blocksy theme, leveraging jQuery and Google reCAPTCHA for enhanced user interaction and security. The site loads external resources such as Google Fonts and social media icons efficiently. Performance is moderate, with room for optimization in image loading and script management. Mobile responsiveness is good, ensuring usability across devices. SEO is well addressed with proper meta tags and structured content. Accessibility is basic but could be improved. No hosting provider details were detected from the HTML content. Overall, the technical implementation supports a professional and functional web presence with opportunities for further enhancement.
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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