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Security report for kastner-luenen-dbg.de

Kastner GmbH · Other · Germany

Medium risk. 5 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

64/100

Risk levelMedium

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

Kastner GmbH, operating under the DIE BADGESTALTER brand in Lünen, Germany, specializes in personalized bathroom renovation and design services. The company emphasizes comprehensive project management, fixed pricing, and tailored solutions to meet individual customer needs. As part of a larger network with over 130 affiliated companies, Kastner GmbH holds a strong regional market position targeting private homeowners seeking quality bathroom renovations. Technically, the website is built on the Marcapo Websitemanager CMS, utilizing modern web technologies including Matomo analytics with privacy-focused configurations and embedded external content such as Google Maps and YouTube videos. The site demonstrates good mobile optimization and SEO practices. Security-wise, HTTPS is enforced, and cookie consent mechanisms are robust, though explicit security headers and policies are not evident. Overall, the site is professional, trustworthy, and compliant with GDPR requirements, with clear contact information and no detected vulnerabilities or suspicious elements.

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

5 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

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  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.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

  3. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Weak SPF Policy

      SPF record has permissive policy allowing any server to send email

      What to do: Use -all or ~all qualifier for better email security

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

Keep watching kastner-luenen-dbg.de

This scan found 26 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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Recommended

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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
70
Email security
70
DNS health
45
Network security
100
GDPR outside view
28
Average
64

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
  • 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

Kastner GmbH leverages its affiliation with the DIE BADGESTALTER network to enhance credibility and market reach. The business model focuses on end-to-end bathroom renovation services, including consultation, design, execution, and funding advice. The company targets homeowners in Germany, particularly in Lünen, offering fixed-price guarantees and personalized service. The website supports this model with detailed service descriptions, cost estimation tools, and appointment scheduling options. The partnership ecosystem includes suppliers and service providers aligned with high standards. Growth potential is supported by digital presence and integration with the parent cooperative SHK eG. No direct revenue streams or e-commerce functionalities are present on the site, indicating a service-oriented approach.

Security posture

The website maintains a moderate security posture with enforced HTTPS and a comprehensive cookie consent mechanism that respects user privacy and complies with GDPR. The use of Matomo analytics with IP anonymization further supports privacy compliance. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces the overall security robustness. No incident response contacts or security policies are published, which could be improved to enhance transparency and readiness. No vulnerabilities or exposed sensitive data were detected in the provided content. The site’s security practices align with basic industry standards but could benefit from enhancements to meet higher security maturity levels.

Recommendations

  1. Implement standard security headers (CSP, HSTS, X-Frame-Options) to strengthen protection against common web attacks.
  2. Publish a clear security policy and incident response contact information to improve transparency and preparedness.
  3. Consider adding a security.txt file to facilitate responsible vulnerability disclosure.
  4. Enhance accessibility features to comply with recognized standards and improve user experience for all visitors.
  5. Regularly audit third-party scripts and embedded content to ensure no vulnerabilities or privacy issues arise.

Contact details published on the site

Addresses
Legal name
Kastner GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Kastner GmbH
Description
Spezialist für individuelle Badsanierung und Badgestaltung mit Komplettbetreuung, Festpreis- und Termingarantie, sowie fachlicher Kompetenz.
Key services
Badsanierung (Bathroom renovation), Barrierefreiheit (Accessibility solutions), Förderung (Funding advice), Teilsanierung (Partial renovation), Individuelle Badgestaltung (Custom bathroom design), Komplettbetreuung (Full project management)
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Matomo Analytics, Google Maps iframe, YouTube embedded videos, SystemJS
Frameworks
Marcapo Websitemanager
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with opt-in for analytics and external content
  • IP anonymization in Matomo analytics

Analytics and tracking

Services
Matomo
Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
Matomo
Transparency
basic

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. Strong cookie consent mechanism with granular user control.
  3. No explicit terms of service found.
  4. Contact information is clearly presented and consistent.
  5. Use of Matomo analytics with privacy considerations.
  6. Embedded external content (Google Maps, YouTube) requires user consent.
  7. Professional and consistent branding aligned with parent network.
  8. No security.txt or explicit security policy documents found.
  9. No visible forms collecting personal data on this page.
  10. No social media links explicitly found in the provided content.
Technical notes

Notes

The website is built using the Marcapo Websitemanager CMS platform, leveraging modern HTML5, CSS3, and JavaScript technologies. It integrates Matomo for analytics with privacy-conscious configurations and embeds external content such as Google Maps and YouTube videos, gated behind user consent. The site is mobile-optimized with responsive design and clear navigation structures. Hosting appears to be managed via your-server.de and related nameservers. Performance is moderate, with potential improvements in loading speed and resource optimization. The technical implementation is solid but could benefit from enhanced security headers and accessibility improvements. No CMS version or backend details are exposed, reducing risk of targeted attacks. Overall, the technical infrastructure supports the business needs effectively with room for modernization and security hardening.
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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