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Security report for vdz-online.de

Verein Deutscher Zementwerke e.V. · Manufacturing · Germany

Medium risk. 2 critical or high findings in Security headers and SSL/TLS.

Security score

74/100

Risk levelMedium

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

The Verein Deutscher Zementwerke e.V. (VDZ) is a well-established German non-profit association serving as a leading research and competence center for the cement, concrete, and environmental protection sectors. Founded in 1877, it provides a broad range of services including research, certification, consulting, and professional training to the cement industry. The website reflects a professional and comprehensive digital presence with multilingual support and clear navigation tailored to industry professionals and stakeholders. Technically, the site is built on TYPO3 CMS, leveraging modern web technologies including SVG graphics and asynchronous JavaScript loading. The use of Matomo analytics indicates a privacy-conscious approach to user tracking. The website is mobile-optimized and performs moderately well, though there is room for improvement in accessibility and security headers. From a security perspective, the site enforces HTTPS and implements cookie consent mechanisms, but lacks some recommended security headers such as Content-Security-Policy and X-Frame-Options. No critical vulnerabilities or exposed sensitive data were detected. The WHOIS data is consistent with the organization's identity and domain usage, supporting legitimacy. Overall, the VDZ website presents a trustworthy, professional, and secure platform that effectively supports its business objectives and stakeholder engagement.

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

2 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

  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 vdz-online.de

This scan found 21 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
65
Email security
60
DNS health
65
Network security
100
GDPR outside view
83
Average
74

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

VDZ holds a strong market position as the technical and scientific association of the German cement industry, offering essential services such as product certification, environmental consulting, and industry research. Its business model is non-profit, focusing on advancing industry standards and innovation. The organization targets industry professionals, manufacturers, and environmental stakeholders, leveraging a partnership ecosystem including subsidiaries like VDZ Service GmbH and VDZ Technology gGmbH. The website content and structure indicate a mature digital strategy supporting growth and member engagement.

Security posture

The website demonstrates a good security posture with mandatory HTTPS, secure script loading, and cookie consent. However, it lacks several security headers that could mitigate risks such as clickjacking and content injection. No incident response or vulnerability disclosure information is publicly available, which could be improved to enhance transparency. The absence of exposed sensitive data and the use of a reputable DNS provider contribute positively to security. Overall, the security maturity is moderate with opportunities for enhancement.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy.
  2. Publish a security policy and vulnerability disclosure program to improve transparency and incident response readiness.
  3. Conduct regular security audits of third-party scripts and forms to ensure input validation and CSRF protection.
  4. Enhance accessibility features to improve compliance with standards and user experience for all visitors.
  5. Maintain and update privacy and cookie policies to reflect evolving regulations and best practices.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Verein Deutscher Zementwerke e.V.
Description
The VDZ is a research and competence center for cement, concrete, and environmental protection, serving as the technical-scientific and economic-political association of the German cement industry. It offers services including research, certification, consulting, and training.
Key services
Research & Innovation, Certification, Technical Consulting, Environmental Protection Services, Training and Seminars
Content quality
excellent
Branding
consistent

Technology

Stack
TYPO3 CMS, Matomo Analytics, SVG graphics, JavaScript (custom scripts)
Frameworks
TYPO3 CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Use of async and defer on scripts
  • No exposed sensitive data in HTML
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Marketing tools
Matomo Analytics
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is comprehensive, professional, and industry-specific.
  3. Multiple language support with hreflang tags for German, English, and Russian.
  4. Use of TYPO3 CMS and Matomo analytics indicates modern and privacy-conscious technology choices.
  5. Cookie consent banner present and functional.
  6. Contact information is clearly provided with named contact person, phone, and email.
  7. Multiple service areas including research, certification, consulting, and training.
  8. Security headers could be improved for enhanced protection.
  9. No signs of suspicious or malicious content.
Technical notes

Notes

The website uses TYPO3 CMS, a robust and scalable content management system suitable for enterprise-level organizations. The technology stack includes SVG for graphics and Matomo for analytics, indicating a modern and privacy-aware infrastructure. Performance is moderate with asynchronous script loading, though no explicit hosting provider was identified. The site is mobile-optimized and SEO-friendly with proper meta tags and hreflang attributes. Opportunities exist to improve accessibility and implement advanced security headers to reduce technical risks.
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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