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Security report for rockwool.com

Rockwool A/S · Energy · Denmark

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

Security score

64/100

Risk levelMedium

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

Rockwool A/S is a well-established enterprise specializing in stone wool insulation products, a critical component in fire-resilient and energy-efficient buildings. Founded in 1909 and headquartered in Denmark, the company targets construction professionals and end users seeking high-quality insulation solutions. The website reflects a mature digital presence with comprehensive content, consistent branding, and clear business messaging. Technically, the site employs modern web technologies including JavaScript frameworks, marketing automation via Marketo, and cookie management through Cookiebot, ensuring a responsive and performant user experience. Security posture is strong with HTTPS enforced and cookie consent mechanisms in place, though the absence of explicit security headers and a public security policy page suggests room for improvement. The lack of WHOIS data for the domain introduces some uncertainty, but the overall professionalism and trust indicators mitigate this concern. Strategic recommendations include enhancing security headers, publishing a security policy, and adding a vulnerability disclosure mechanism to further strengthen trust and compliance.

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

3 findings rated critical or high. Fix these first.

  1. 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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  2. 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';…

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

Keep watching rockwool.com

This scan found 17 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
0
Security headers
30
Email security
80
DNS health
85
Network security
100
GDPR outside view
88
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

Rockwool operates in the energy sector with a focus on manufacturing stone wool insulation. The company holds a leading market position globally, supported by a broad portfolio of subsidiaries and related domains such as Rockfon and Grodan. Their business model centers on product manufacturing and distribution to the construction industry, emphasizing fire safety and sustainability. The website's integration with multiple marketing and analytics platforms indicates a sophisticated approach to customer engagement and data-driven decision making. The presence of social media channels and detailed privacy policies reflects a commitment to transparency and regulatory compliance. Growth indicators include extensive use of digital marketing tools and a well-maintained online presence. Partnerships and related domains suggest a diversified ecosystem supporting their core business.

Security posture

The website demonstrates a solid security foundation with mandatory HTTPS and a robust cookie consent framework compliant with GDPR. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the absence of common security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces the overall security posture. There is no publicly visible security policy or incident response contact information, which are important for transparency and readiness. The WHOIS data absence is a notable gap, potentially impacting trust. Overall, the security maturity is good but could be enhanced by adopting additional headers, publishing security documentation, and implementing a security.txt file for vulnerability disclosures.

Recommendations

  1. Implement and enforce security headers including CSP, HSTS, and X-Frame-Options to mitigate common web vulnerabilities.
  2. Publish a clear security policy and incident response page to improve transparency and preparedness.
  3. Add a security.txt file to facilitate responsible vulnerability disclosure and improve security communication.
  4. Enhance WHOIS data visibility or ensure domain registration transparency to strengthen trustworthiness.
  5. Continue maintaining GDPR compliance and update privacy and cookie policies regularly to reflect evolving regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Rockwool A/S
Description
Our stone wool insulation is a key component in fire-resilient buildings.
Key services
Stone wool insulation manufacturing, Fire-resilient building solutions
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Marketo Munchkin, Cookiebot, Google Tag Manager, Microsoft Azure (implied by cookies), JSON-LD structured data
Performance
fast
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data found in HTML

Analytics and tracking

Services
Google Analytics, Microsoft Application Insights, VWO
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google
Tracking pixels
Cookiebot, Marketo Munchkin, VWO
Marketing tools
Marketo, Cookiebot, VWO, Usabilla
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 challenge.
  2. Comprehensive cookie consent and privacy policy mechanisms are implemented.
  3. No contact email explicitly found in provided HTML, but phone contact is present in structured data.
  4. Strong use of modern web technologies and marketing/analytics tools.
  5. No visible security vulnerabilities or exposed sensitive data.
  6. WHOIS data is missing, which reduces trust but website content and branding are consistent with a legitimate enterprise.
Technical notes

Notes

The website uses a modern technology stack with asynchronous JavaScript loading, integration with marketing automation (Marketo), and cookie management (Cookiebot). The use of JSON-LD structured data enhances SEO and provides clear business information to search engines. Performance optimizations include preloading fonts and stylesheets, and DNS prefetching for external resources. Mobile optimization and accessibility features are well implemented, contributing to a positive user experience. No CMS or hosting provider details were explicitly detected. The site benefits from fast loading times and good SEO practices but could improve by adding more explicit accessibility landmarks and ARIA roles. Technical risks are minimal, with no visible outdated libraries or deprecated code snippets.
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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