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Security report for grunbauer.nl

Grünbauer BV · Manufacturing · Netherlands

High risk. 10 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

Grünbauer BV is a small manufacturing company based in the Netherlands specializing in steel processing services including cambering, straightening, splitting, sawing, cold rolling, and production of various steel girders and beams. The company targets steel fabricators and steel traders with a niche B2B business model. The website provides multilingual content describing their services and contact information but lacks modern web technologies and advanced digital features. The technical infrastructure is basic, with no detected CMS or analytics tools, and the site appears static and somewhat outdated. Security posture is weak due to lack of HTTPS enforcement and missing security headers, although DNSSEC is enabled on the domain. Privacy compliance is minimal with no privacy or cookie policies present. Overall, the website is functional but requires improvements in security, privacy, and technical modernization to enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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

10 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';…

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Keep watching grunbauer.nl

This scan found 28 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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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
15
Email security
65
DNS health
70
Network security
0
GDPR outside view
25
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

Grünbauer BV holds a niche position in the steel manufacturing sector, focusing on heavy steel profile processing for construction and steel trading companies. The company benefits from a long-established domain since 1999 and clear business registration and VAT details, supporting credibility. The business model is straightforward B2B supply and service provision. The absence of digital marketing tools and social media presence suggests limited online growth initiatives. The multilingual approach indicates an intent to serve a broader European market. There are no detected partnerships or subsidiaries. The company could improve competitive advantage by adopting modern digital tools and enhancing online presence.

Security posture

The current security posture is basic and presents several gaps. The absence of HTTPS enforcement and security headers exposes the site to potential interception and clickjacking risks. No privacy or cookie policies are present, indicating non-compliance with GDPR requirements. No incident response or vulnerability disclosure mechanisms are found, limiting the company's ability to manage security incidents effectively. DNSSEC enabled on the domain is a positive indicator. Overall, the security maturity is low, and improvements are necessary to protect business and customer data and comply with regulations.

Recommendations

  1. Implement HTTPS with a valid SSL/TLS certificate and enforce HTTPS site-wide.
  2. Add standard security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish comprehensive privacy and cookie policies to ensure GDPR compliance.
  4. Establish a vulnerability disclosure policy or security.txt file to improve incident response readiness.
  5. Modernize the website with responsive design and accessibility improvements to enhance user experience and trust.

Contact details published on the site

Addresses
Legal name
Grünbauer BV
VAT number
NL 003689608 B01
Registration number
KvK Amsterdam 331147102
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Grünbauer BV
Description
Supplier for steel fabricators and steel stockholders specializing in cambering, straightening, splitting, sawing, cold rolling steel profiles, and producing various types of girders and beams. Services include grit blasting and welding primer application.
Key services
Cambering rolled steel sections, Straightening and splitting steel profiles, Sawing beam ends to specification, Cold rolling steel profiles, Producing plate girders, omega girders, castellated beams, Steel grit blasting and welding primer application
Content quality
basic
Branding
moderate

Technology

Stack
HTML, CSS, JavaScript
Performance
moderate
Mobile
poor
Accessibility
basic
SEO
basic

Security

Observed score
40/100
Good practices seen
  • DNSSEC enabled on domain

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
basic
User experience
basic
Content relevance
good
Navigation
basic
Professionalism
basic
Trustworthiness
moderate

Key observations

  1. Website is informational with multilingual content describing steel processing services.
  2. No privacy or cookie policies found, indicating potential GDPR compliance gaps.
  3. Contact information is clearly provided with phone, email, physical address, VAT and registration numbers.
  4. No forms or data collection mechanisms detected.
  5. No modern web technologies or CMS detected; site appears static and somewhat outdated.
  6. No analytics or tracking scripts detected.
  7. No social media links found.
  8. No security headers or HTTPS enforcement detected in provided data.
  9. Terms of Service page is linked and present.
  10. No evidence of security or incident response policies.
Technical notes

Notes

The website is built using basic HTML, CSS, and JavaScript without any detected CMS or modern frameworks. The hosting provider is Antagonist B.V., consistent with the domain registrar. The site lacks mobile optimization and accessibility features. No analytics or tracking scripts are present, indicating minimal data collection. Performance is moderate but could be improved with modern web standards. The static nature of the site suggests low technical debt but also limited scalability and modernization. Security configurations are minimal, lacking HTTPS enforcement and security headers, which are critical for protecting user data and maintaining trust.
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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