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Security report for kleusberg.de

KLEUSBERG · Real Estate · Germany

Medium risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

72/100

Risk levelMedium

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

KLEUSBERG is a German company specializing in modular construction, mobile rental buildings, hall installations, and rental containers. The company targets businesses and organizations requiring flexible and mobile building solutions. Their market position appears established within the modular construction sector, offering manufacturing and rental services. The website is professionally designed with good content quality and consistent branding, supporting a medium-sized business profile. Technically, the website leverages modern frontend technologies such as Angular and integrates multiple third-party services including Cookiebot for consent management, Google Tag Manager, Adform for advertising, and HubSpot for marketing automation. The site is mobile-optimized and includes SEO best practices, although some accessibility features are basic. From a security perspective, the site uses HTTPS and implements cookie consent mechanisms, but lacks explicit security headers and published security policies. No vulnerabilities or exposed sensitive data were detected in the provided content. Privacy compliance is partially met with a cookie consent banner but lacks a clear privacy policy and terms of service pages. Overall, the website is safe and professional with moderate to good technical and security posture. Recommendations include publishing comprehensive privacy and security policies, adding security headers, and providing clear contact information to enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
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

3 findings rated critical or high. Fix these first.

  1. 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';…
  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

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

Keep watching kleusberg.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
30
Email security
85
DNS health
70
Network security
100
GDPR outside view
83
Average
72

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

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 kleusberg.de, from OffSeq Breach.

Total records
16
Employees
0
Customers
15
Third parties
1
Weak passwords
25%

6 subdomains affected

See the 10 newest leaked credentials

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

KLEUSBERG operates in the real estate and manufacturing sectors, focusing on modular and mobile building solutions. Their business model includes both manufacturing and rental services, targeting commercial clients needing flexible space solutions. The company benefits from a consistent brand presence and uses advanced digital marketing tools to engage customers. The integration of multiple analytics and advertising platforms indicates a mature marketing strategy. However, the absence of explicit contact and legal information on the website may limit customer trust and regulatory compliance. The company appears to maintain a medium-sized operation with a focus on quality and innovation in modular construction.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enforced and a robust cookie consent mechanism via Cookiebot. However, the lack of explicit security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces the overall security posture. No incident response or vulnerability disclosure information is published, which may hinder timely handling of security issues. The use of multiple third-party scripts introduces potential risk vectors that require ongoing monitoring. Privacy compliance is partial, with GDPR-related consent but missing detailed privacy and terms policies. Overall, the security posture is adequate but could be significantly improved with better policy transparency and technical hardening.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service to improve legal compliance and user trust.
  2. Implement and enforce security headers including CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  3. Establish and publicize an incident response plan and contact channels for security issues, including a security.txt file.
  4. Provide clear and accessible contact information including emails and phone numbers for customer and security inquiries.
  5. Regularly audit and update third-party scripts and tracking technologies to minimize vulnerabilities and privacy risks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
KLEUSBERG
Description
KLEUSBERG ist bekannt für Modulbau, Mobile Mietgebäude, Halleneinbauten und Mietcontainer.
Key services
Modulbau, Mobile Mietgebäude, Halleneinbauten, Mietcontainer
Content quality
good
Branding
consistent

Technology

Stack
Angular (implied by ng-transition attribute), Cookiebot, Google Tag Manager, Adform tracking, Swiper.js
Frameworks
Angular
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent management implemented

Analytics and tracking

Services
Google Analytics, Hotjar, HubSpot
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Adform, Google DoubleClick
Tracking pixels
Cookiebot, Hotjar, HubSpot
Marketing tools
HubSpot
Transparency
good

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website uses modern frontend framework (Angular) with advanced UI components (Swiper).
  2. Comprehensive cookie consent mechanism implemented via Cookiebot.
  3. Multiple third-party marketing and analytics integrations present.
  4. No explicit privacy policy or terms of service pages detected in provided content.
  5. No direct contact information (email, phone, address) found in analyzed content.
  6. No security.txt or vulnerability disclosure information found.
  7. Website content is professional and business-focused with good SEO metadata.
  8. No WAF or blocking mechanisms detected; content fully accessible.
Technical notes

Notes

The website is built using Angular framework, indicating a modern single-page application architecture. It uses Swiper.js for interactive UI components and integrates Cookiebot for GDPR-compliant cookie management. Google Tag Manager and Adform scripts are used for analytics and advertising, alongside HubSpot for marketing automation. The site is mobile-optimized with responsive design and includes SEO metadata such as Open Graph tags. Performance is moderate, with asynchronous loading of tracking scripts. No CMS or hosting provider details were identified from the provided content. The technical stack is contemporary but could benefit from enhanced accessibility features and security header implementation.
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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