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Security report for adventure-minigolf-duisburg.de

RheinFit Sportakademie GmbH · Hospitality · Germany

High risk. 11 critical or high findings in GDPR outside view, Network security and 3 other checks.

Security score

37/100

Risk levelHigh

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

Adventure Minigolf Duisburg, operated by RheinFit Sportakademie GmbH, is a small-scale recreational business offering a unique adventure minigolf experience in Duisburg, Germany. The website presents a family-friendly environment with 24 creatively designed minigolf courses and additional sports activities such as Fußballbillard. The business targets families and children aged six and above, positioning itself as a local leisure destination. Technically, the website is built on WordPress with the Divi theme, leveraging LiteSpeed caching and jQuery, hosted likely by Kasserver. The site is moderately performant, mobile-optimized, and SEO-friendly with structured data markup enhancing search visibility. Security posture is good with HTTPS enforced and no visible vulnerabilities, though security headers and incident response information are lacking. Privacy compliance is partial, with a privacy policy present but no cookie consent mechanism detected. Overall, the website is professional, trustworthy, and well-aligned with its business goals.

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

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: SMB

      Port 445 (SMB) is publicly accessible - SMB - Windows file sharing, high risk

      What to do: Immediately restrict access to SMB 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
    • 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 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 adventure-minigolf-duisburg.de

This scan found 36 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
64
Security headers
25
Email security
55
DNS health
50
Network security
0
GDPR outside view
28
Average
37

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 hospitality and recreation sector, focusing on experiential leisure activities. Its business model revolves around onsite entertainment services, including minigolf and sports court rentals, supplemented by food and beverage offerings. The website reflects a consistent brand image and leverages social media channels for engagement. While no explicit revenue data is available, the presence of partner and cooperation pages suggests a collaborative local ecosystem. The business appears to maintain a modest scale with a focus on quality customer experience rather than extensive digital marketing or e-commerce capabilities.

Security posture

The website demonstrates a baseline security maturity with HTTPS enabled and no exposed sensitive data. However, the absence of security headers such as Content-Security-Policy and lack of published security policies or incident response contacts indicate room for improvement. No signs of vulnerable libraries or malicious scripts were detected. The site does not implement cookie consent mechanisms, which is a compliance gap under GDPR. Overall, the security posture is adequate for the business scale but should be enhanced to mitigate risks and improve regulatory compliance.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Add a cookie consent banner/mechanism to ensure GDPR compliance.
  3. Publish a clear security policy and incident response contact information on the website.
  4. Conduct regular security audits of third-party scripts and plugins to identify vulnerabilities.
  5. Enhance privacy compliance by detailing data retention policies and user rights.

Contact details published on the site

Addresses
Legal name
RheinFit Sportakademie GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
RheinFit Sportakademie GmbH
Description
Adventure Minigolf Duisburg offers 24 uniquely designed adventure minigolf courses in Duisburg Homberg, featuring hand-carved wooden sculptures, water features, and a family-friendly environment with additional activities like Fußballbillard and a kids green area.
Key services
Adventure Minigolf, Fußballbillard court rental, Refreshments and terrace seating
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Divi Theme, jQuery, LiteSpeed Cache
Frameworks
WordPress CMS, Divi Theme Framework
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

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 challenge.
  2. Content is well structured and relevant to the business.
  3. No cookie consent mechanism detected despite GDPR relevance.
  4. Contact information is clearly presented and consistent.
  5. No visible security policy or incident response information.
  6. No advertising or tracking scripts detected.
  7. Good use of structured data (JSON-LD) for SEO and business info.
  8. Social media presence on Facebook and Instagram.
  9. No forms detected on the homepage; contact form likely on contact page.
Technical notes

Notes

The website is built on a mature CMS platform (WordPress) with a popular theme (Divi) and uses standard web technologies such as jQuery. Hosting appears to be with a commercial provider (Kasserver). Performance is moderate with caching enabled but could benefit from further optimization. Mobile responsiveness is good, and SEO is supported by structured data and meta tags. Accessibility features are basic and could be improved. No critical technical debt or outdated libraries were identified, but security-related technical enhancements are recommended.
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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