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Security report for rockwool.nl

Rockwool A/S · Manufacturing · Netherlands

Low risk. 3 critical or high findings in Security headers and Email security.

Security score

76/100

Risk levelLow

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

ROCKWOOL Group is a globally recognized leader in manufacturing stone wool insulation products, serving the construction and building sectors with thermal, fire-safe, acoustic, and sustainable insulation solutions. The company targets professionals in construction, architecture, and building maintenance, emphasizing energy efficiency and sustainability. The website reflects a mature digital presence with comprehensive content, structured data, and a consistent brand image. Technically, the site employs modern JavaScript frameworks, integrates marketing and analytics tools such as Marketo, Google Tag Manager, and Cookiebot, and provides a robust cookie consent mechanism aligned with GDPR requirements. Security posture is solid with HTTPS enforced and no visible sensitive data exposure, though explicit security headers are not detected in the provided data. The absence of WHOIS data is a notable anomaly but does not detract significantly from the overall trustworthiness given the professional presentation and extensive business information. Strategic recommendations include enhancing security headers, publishing explicit security policies, and improving transparency around incident response. Overall, ROCKWOOL's website demonstrates strong business credibility, technical maturity, and privacy compliance, positioning it well in its industry.

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. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

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

Keep watching rockwool.nl

This scan found 19 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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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
90
Security headers
30
Email security
70
DNS health
85
Network security
100
GDPR outside view
83
Average
76

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 holds a strong market position as a world leader in stone wool insulation, founded in 1909, with a large enterprise scale. Its business model focuses on manufacturing and distributing insulation materials for various building applications. The company leverages a broad partnership ecosystem including brands like Rockfon, Grodan, Rockpanel, Lapinus, and Sportfibres, enhancing its market reach. Revenue streams likely include product sales, technical services, and sustainability consulting. The website's content and structured data indicate a focus on professional audiences and compliance with European privacy regulations. Growth indicators include active marketing and analytics integration and a comprehensive cookie consent framework. The company maintains a consistent brand presence across multiple digital platforms and social media channels.

Security posture

The website exhibits a mature security posture with mandatory HTTPS and a comprehensive cookie consent mechanism that respects GDPR. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the lack of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options suggests room for improvement. There is no visible security policy or incident response contact information, which could hinder rapid response to security incidents. The use of third-party marketing and analytics tools introduces potential privacy and security risks that require ongoing monitoring. Overall, the security maturity is good but could be enhanced by adopting additional best practices and transparency measures.

Recommendations

  1. Implement and enforce security headers including CSP, HSTS, and X-Frame-Options to strengthen defense against common web attacks.
  2. Publish a clear security policy and incident response plan on the website to improve transparency and readiness.
  3. Introduce a security.txt file to facilitate responsible vulnerability disclosure and communication.
  4. Provide explicit contact information for security incidents, such as a dedicated security@ or abuse@ email address.
  5. Regularly audit and update third-party scripts and marketing tools to minimize privacy and security risks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Rockwool A/S
Description
ROCKWOOL levert thermische, brandveilige, akoestische en duurzame steenwol isolatie materialen voor het isoleren van gevels, vloeren, wanden en daken van woningen, gebouwen, metaalbouw en technische isolatie voor installaties.
Key services
Thermal insulation, Fire-safe insulation, Acoustic insulation, Sustainable stone wool insulation materials
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Marketo Munchkin, Cookiebot, Microsoft Application Insights
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with opt-in/out
  • No exposed sensitive data in HTML

Analytics and tracking

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

Advertising

Ad networks
Google Ads, Twitter Ads, VWO
Tracking pixels
Twitter personalization_id, VWO pixel
Marketing tools
Marketo, Cookiebot, 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 mechanism implemented
  3. Strong use of structured data for SEO and business info
  4. No explicit security headers detected in provided data
  5. WHOIS data missing, which reduces trust score but website content is professional
  6. Multiple third-party marketing and analytics tools used
  7. No visible contact forms in provided HTML snippet, but phone contact present in structured data
  8. No explicit terms of service page found in scanned content
Technical notes

Notes

The website uses a modern technology stack including asynchronous JavaScript loading, Google Tag Manager, Marketo Munchkin for marketing automation, and Cookiebot for cookie consent management. Fonts and stylesheets are efficiently preloaded and cached via a content delivery network (CDN) at p-cdn.rockwool.com, indicating good performance optimization. The site is mobile-optimized with responsive design and accessibility features such as ARIA roles and keyboard navigation support. SEO is enhanced through comprehensive meta tags, Open Graph protocol, and JSON-LD structured data. No CMS is explicitly detected, suggesting a custom or proprietary platform. Hosting details are not explicit but likely enterprise-grade given the scale and performance. Overall, the technical infrastructure supports a fast, accessible, and SEO-friendly user experience with room for security enhancements.
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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