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Security report for heidelbergmaterials.de

Heidelberg Materials · Manufacturing · Germany

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

Security score

79/100

Risk levelLow

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

Heidelberg Materials is a leading global construction materials company with a strong market presence in Germany, particularly as the market leader in cement and ready-mixed concrete. The company offers a broad portfolio including cement, concrete, aggregates (sand, gravel), and precast concrete elements, with a strong focus on sustainability and innovation such as their evoZero® Carbon Captured Net-Zero Cement. The website reflects a mature enterprise with comprehensive product information, customer engagement through events and newsletters, and a consistent brand identity. Technically, the site is built on Drupal 11, leveraging modern web technologies and analytics tools, with good mobile optimization and accessibility. Security posture is solid with HTTPS and cookie consent mechanisms, though explicit security policies and incident response contacts are not published. Overall, the site is professional, trustworthy, and compliant with GDPR requirements.

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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

  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 heidelbergmaterials.de

This scan found 18 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

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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
85
DNS health
70
Network security
100
GDPR outside view
83
Average
79

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

Heidelberg Materials operates in the manufacturing and construction materials sector, targeting B2B customers in construction, infrastructure, and industrial projects, as well as private customers for certain product lines. Their business model centers on production, distribution, and service provision of building materials, with a clear emphasis on sustainability and innovation to maintain competitive advantage. The company has a global footprint with localized websites and subsidiaries such as ELBE Decken. Their marketing ecosystem includes active social media channels, newsletters, and industry events, supporting strong customer engagement and brand positioning. The company’s longevity and market leadership reinforce its credibility and growth potential.

Security posture

The website demonstrates a good security baseline with enforced HTTPS, cookie consent management, and use of reputable analytics platforms. However, there is no explicit security policy or incident response information publicly available, which could be improved to enhance transparency and readiness. Security headers are not explicitly confirmed but should be verified and strengthened. No vulnerabilities or exposed sensitive data were detected in the content. The absence of a security.txt file or vulnerability disclosure program is a gap in the security maturity. Overall, the security posture is solid but could benefit from enhanced documentation and proactive disclosure mechanisms.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement and verify security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Add a security.txt file to facilitate responsible vulnerability disclosure.
  5. Continue to maintain and enhance GDPR compliance and cookie consent transparency.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Heidelberg Materials
Description
Heidelberg Materials zählt weltweit zu den größten Baustoffunternehmen und ist die Nr. 1 bei Zuschlagstoffen, Nr. 2 bei Zement und Nr. 3 bei Transportbeton. In Deutschland sind sie Marktführer bei Zement und Transportbeton sowie führend bei Sand und Kies. Das Unternehmen bietet Produkte und Lösungen in den Bereichen Zement, Beton & Fließestrich, Mineralik (Sand, Kies, Recycling), Betonelemente und nachhaltigere Baustoffe an.
Key services
Zementproduktion, Beton & Fließestrich Produkte, Mineralik Produkte (Sand, Kies, Recycling), Betonelemente Herstellung, Nachhaltige Baustoffe (z.B. evoZero® Carbon Captured Net-Zero-Zement), Kundenberatung und Services, Veranstaltungen und Fachveranstaltungen
Content quality
excellent
Branding
consistent

Technology

Stack
Drupal 11, jQuery, jQuery UI, Better Exposed Filters, CKEditor Accordion, 2B-Advice Cookie Consent Manager, Google Tag Manager, eTracker Analytics
Frameworks
Drupal
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • Use of HTTPS
  • Cookie consent management
  • No exposed sensitive data in HTML
  • Secure forms with CSRF tokens (implied by Drupal)

Analytics and tracking

Services
Google Analytics, eTracker, Mouseflow
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google AdWords, DoubleClick
Tracking pixels
eTracker, Mouseflow
Marketing tools
2B-Advice Cookie Consent
Transparency
good

Site quality

Design
excellent
User experience
excellent
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 professionally presented and comprehensive for the construction materials industry.
  3. Strong emphasis on sustainability and innovation in products.
  4. Multiple language alternates and global presence indicated.
  5. Cookie consent and privacy policies are implemented with clear user controls.
  6. Social media presence is active and linked.
  7. No direct phone numbers or email addresses explicitly found in the provided content; contact primarily via contact form.
  8. No explicit security or incident response policies published on the site.
Technical notes

Notes

The website is built on Drupal 11, a modern and robust CMS platform, supported by jQuery and various contributed modules for enhanced functionality such as better exposed filters and accordion UI components. The site uses asynchronous loading for analytics and cookie management scripts, improving performance and user experience. Mobile optimization and accessibility are well implemented, with responsive images and ARIA roles. Hosting details are not explicit but DNS is managed via CSC, a reputable provider. Performance is moderate, with potential for optimization in script loading and caching. SEO is supported by comprehensive meta tags, Open Graph data, and hreflang attributes for multilingual support. Overall, the technical infrastructure is solid and aligned with enterprise standards.
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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