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Security report for kluge-sanierung.de

Kluge Sanierung GmbH · Real Estate · Germany

Medium risk. 6 critical or high findings in Security headers, SSL/TLS and 2 other checks.

Security score

51/100

Risk levelMedium

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

Kluge Sanierung GmbH is a reputable German company specializing in the remediation of hazardous substances such as asbestos, mineral fibers, PCB, PAK, and mold in various building types including industrial, commercial, public, residential, and heritage sites. The company positions itself as a market leader with comprehensive service offerings tailored to complex remediation needs. Their website is built on WordPress using Elementor and includes modern accessibility features and cookie consent mechanisms, reflecting a mature digital presence. Security posture is solid with HTTPS and privacy compliance, though explicit security policies and incident response contacts are not publicly detailed. Overall, the site is professional, trustworthy, and well-structured, supporting the company's credibility in its sector.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

6 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 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';…

  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

      Unregistered MX Record

      MX record points to unregistered domain: bmx1.mb-t.net

      What to do: Remove or fix MX record pointing to unregistered domain

      • RFC 5321 §5.1
      • NIS2 21(2)(i)
      • IR 2024/2690 12.4: Implementing Regulation (EU) 2024/2690, Annex point 12.4: Asset inventory
      • NIST CM-8: NIST SP 800-53 Rev. 5 CM-8: System Component Inventory

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

Keep watching kluge-sanierung.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.

Daily monitoring

Recommended

€25per month

  • 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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Full report

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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
67
Security headers
15
Email security
70
DNS health
45
Network security
20
GDPR outside view
88
Average
51

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

The company targets a broad range of clients from industrial operators to public institutions and residential property managers, focusing on hazardous material remediation. Their business model is service-oriented with a strong emphasis on compliance and safety. Certifications and trust signals such as RAL GZ and SSF affiliations enhance their market position. The website content and structure support clear communication of services and company values, aiding customer engagement and lead generation. The presence of accessibility tools and multilingual options indicates a commitment to inclusivity and broad audience reach.

Security posture

The website employs HTTPS and cookie consent tools, indicating attention to data protection and privacy. However, the absence of explicit security headers and incident response information suggests room for improvement in security transparency and defense-in-depth. No vulnerabilities or exposed sensitive data were detected in the HTML content. The use of reputable WordPress plugins and regular updates are implied but should be continuously monitored to mitigate plugin-related risks. Overall, the security posture is good but could benefit from enhanced security policy disclosures and technical hardening.

Recommendations

  1. Implement and publish a dedicated security policy and incident response contact information on the website.
  2. Add and enforce security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to improve browser security.
  3. Publish a security.txt file to facilitate responsible vulnerability disclosure.
  4. Regularly audit and update WordPress plugins and themes to minimize vulnerabilities.
  5. Enhance SEO by adding structured data (JSON-LD) for organization and services to improve search visibility.

Contact details published on the site

Addresses
Legal name
Kluge Sanierung GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Kluge Sanierung GmbH
Description
Kluge Sanierung GmbH is a market leader in the remediation of hazardous substances in buildings and technical installations. They specialize in the competent removal of asbestos, mineral fibers (KMF), polycyclic aromatic hydrocarbons (PAK), polychlorinated biphenyls (PCB), and mold for industrial, commercial, public, residential buildings, and monuments.
Key services
Asbestos remediation, KMF remediation, PCB remediation, PAK remediation, Mold remediation, Industrial services
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Elementor, jQuery, Premium Addons for Elementor, Groovy Menu, Borlabs Cookie, Accessibility Plugin OneTap Pro
Frameworks
Elementor
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
excellent
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Cookie consent mechanism implemented
  • LocalStorage manipulation to prevent setting 'elementor' key for privacy

Analytics and tracking

Services
WP Statistics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
WP Statistics
Marketing tools
Borlabs Cookie
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. Content is in German and professionally presented
  3. Strong focus on hazardous substance remediation services
  4. Good accessibility features implemented
  5. Cookie consent and privacy policies are present and comprehensive
  6. No explicit security or incident response contact information found
  7. No terms of service page detected
  8. Use of modern WordPress plugins and Elementor for site building
  9. Contact information is clearly provided in footer and contact page
  10. No suspicious or malicious content detected
Technical notes

Notes

The website is built on WordPress with Elementor and several premium addons, indicating a modern and flexible CMS environment. The use of jQuery and other standard libraries is consistent with typical WordPress setups. Accessibility is well addressed via a dedicated plugin offering multiple modes for different user needs. Performance is moderate, with some large images but responsive design and lazy loading techniques. The site uses Borlabs Cookie for GDPR-compliant cookie management. No major technical debt or deprecated technologies were detected, but security headers and structured data could be improved for better technical maturity.
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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