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Security report for huelskens.de

Hülskens Holding GmbH & Co. KG · Energy · Germany

High risk. 7 critical or high findings in GDPR outside view, Network security and 2 other checks.

Security score

49/100

Risk levelHigh

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

Hülskens Holding GmbH & Co. KG is a well-established German company specializing in the supply of mineral resources such as Kies and Sand, production of transport concrete and precast concrete elements, water construction, logistics, and insurance brokerage. With a history dating back to the early 20th century and a workforce exceeding 900 employees, the company holds a strong regional market position serving construction, energy, and logistics sectors. Their business model focuses on B2B services with multiple subsidiaries and specialized business units, supported by a professional and content-rich website. Technically, the website is built on the Contao CMS platform, utilizing modern JavaScript libraries and frameworks, and hosted by agenturserver. The site is mobile-optimized and SEO-friendly, though some improvements in accessibility and security headers could be made. Security posture is moderate with HTTPS usage and cookie consent mechanisms in place, but lacks explicit security policies or incident response information. Overall, the domain registration and WHOIS data align well with the company's claims, supporting legitimacy and trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
43/ 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. 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 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';…

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Keep watching huelskens.de

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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
62
Security headers
65
Email security
87
DNS health
70
Network security
0
GDPR outside view
43
Average
55
After the cap
49

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention huelskens.de, from OffSeq Breach.

No leaked records found

Breach holds no records for huelskens.de right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

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 multiple subsidiaries focused on different aspects of construction materials and services, including Kies & Sand, Beton, Wasserbau, Logistik, and insurance brokerage. Their market positioning is strong regionally with a diversified portfolio and a clear focus on sustainability and regional development. The business model is primarily B2B, targeting construction companies, logistics providers, and insurance clients in the energy and infrastructure sectors. The presence of a career portal and active social media profiles indicates ongoing growth and engagement. Partnerships such as the 'zukunft niederrhein' initiative further enhance their regional influence and industry collaboration.

Security posture

The website demonstrates a moderate security posture with HTTPS enabled and a cookie consent mechanism compliant with GDPR. However, no explicit security headers (e.g., CSP, HSTS) were detected in the provided data, and there is no visible security or incident response policy. No vulnerabilities or exposed sensitive data were found in the HTML content. The lack of a security.txt or vulnerability disclosure policy suggests room for improvement in transparency and incident readiness. Overall, the security posture is adequate for a corporate website but could be enhanced to meet higher standards.

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 a clear security policy and incident response contact information to improve transparency and trust.
  3. Regularly audit and update third-party libraries to mitigate potential vulnerabilities.
  4. Enhance accessibility features to improve compliance with WCAG standards.
  5. Consider adding a vulnerability disclosure or security.txt file to facilitate responsible reporting.

Contact details published on the site

Addresses
Legal name
Hülskens Holding GmbH & Co. KG
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Hülskens Holding GmbH & Co. KG
Description
Hülskens bietet Kies und Sand, Transportbeton, Betonfertigteile, Baustahl, Baustoffüberwachung, Baustoff-Logistik, Wasserbau und Versicherungslösungen. Der Firmenverband umfasst diverse Geschäftsfelder wie Kies & Sand, Beton, Wasserbau, Logistik, Versicherungsmakler, Industrieservice, World Dredgers - Saugbagger und Sediment-Management.
Key services
Kies & Sand supply, Transportbeton and Betonfertigteile production, Wasserbau (water construction), Logistics and Hafenumschlag (port handling), Insurance brokerage for inland shipping and construction, Industrieservice, Sediment management
Content quality
good
Branding
consistent

Technology

Stack
jQuery, jQuery UI, Colorbox, Swipe.js, Bootstrap
Frameworks
Contao Open Source CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • Use of HTTPS implied by base href (https://huelskens.de/)

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 professionally designed and content-rich.
  2. Strong focus on regional construction and logistics sectors.
  3. Multiple business units with dedicated domains.
  4. Cookie consent and privacy policy implemented.
  5. No visible security headers detected; opportunity for improvement.
  6. No evidence of malicious or suspicious content.
  7. Social media presence across major platforms.
  8. WHOIS data consistent with business claims.
Technical notes

Notes

The website is built on the Contao CMS platform, leveraging jQuery, jQuery UI, Colorbox, Swipe.js, and Bootstrap for UI and interactivity. The hosting is managed via agenturserver with multiple nameservers indicating a stable infrastructure. Performance is moderate with some modern features like responsive design and slider videos. SEO is well addressed with meta tags, structured data (JSON-LD), and clear navigation. Accessibility is basic but could be improved. The site uses HTTPS as indicated by the base href. Overall, the technical implementation is solid but could benefit from enhanced security headers and performance optimizations.
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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