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Security report for aestuver.de

James Hardie Europe GmbH · Manufacturing · Germany

Medium risk. 7 critical or high findings in GDPR outside view, Email security and 1 other check.

Security score

61/100

Risk levelMedium

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

The website www.aestuver.de represents Aestuver®, a well-established German brand under James Hardie Europe GmbH specializing in fire protection solutions using glass fiber lightweight concrete technology. The company offers a broad portfolio of certified fire protection products and engineering services targeting construction professionals, industrial OEMs, and infrastructure projects. The site demonstrates a solid market position with a focus on quality, certification, and technical support. Technically, the website is built on ASP.NET WebForms with Kentico CMS, hosted behind Cloudflare, and integrates modern marketing and analytics tools such as Google Tag Manager and cookie consent mechanisms. Security posture is good with HTTPS enforced and CSRF protections, though some security headers could be improved. Privacy compliance is basic but present with clear cookie and privacy policies. Overall, the site is professional, trustworthy, and well-structured, supporting the company's business credibility and customer engagement.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 100 · Critical
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

7 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, LinkedIn, YouTube

      What to do: Document all third-party data sharing in your privacy policy

  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.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

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

Keep watching aestuver.de

This scan found 23 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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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
75
Security headers
65
Email security
40
DNS health
60
Network security
100
GDPR outside view
25
Average
61

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention aestuver.de, from OffSeq Breach.

No leaked records found

Breach holds no records for aestuver.de right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Aestuver® operates in the manufacturing sector with a focus on fire protection materials for construction, industrial, and transportation infrastructure. The business model is B2B, providing both products and engineering services including project planning and on-site technical support. The company benefits from strong certifications and quality assurance processes, enhancing its competitive advantage. The website reflects a medium-sized enterprise with a consistent brand presence and partnerships with subsidiaries like Fermacell GmbH. The target customers are engineers, architects, and industrial clients requiring certified fire protection solutions. The company leverages digital marketing and social media to maintain market visibility and customer relations.

Security posture

The website exhibits a mature security posture with HTTPS enforced and use of Cloudflare for DNS and CDN protection. CSRF tokens are implemented in forms, and no sensitive data is exposed in the HTML. However, explicit security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options are not detected and should be added to enhance protection against common web attacks. There is no visible incident response or security policy information, which could be improved for transparency. No vulnerabilities or malware indicators were found in the content. Overall, the site is secure but could benefit from enhanced header policies and documented security practices.

Recommendations

  1. Implement comprehensive security headers including CSP, X-Frame-Options, and X-Content-Type-Options.
  2. Publish a dedicated security policy and incident response contact information to improve transparency and trust.
  3. Enhance accessibility features to meet higher compliance standards.
  4. Expand SEO metadata and structured data for better search engine visibility.
  5. Regularly audit third-party scripts and update to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
James Hardie Europe GmbH
Description
Aestuver® is a leading German brand specializing in glass fiber lightweight concrete technology, offering high-quality fire protection solutions for structural fire protection, electrical installations, tunnels, and underground transport systems. The brand provides a broad product range including fire protection boards, cable ducts, fire protection claddings, and joint systems.
Key services
Fire protection product manufacturing, Project planning and management, Technical consulting and on-site support, Custom component manufacturing, Quality assurance and certification
Content quality
good
Branding
consistent

Technology

Stack
ASP.NET WebForms, JavaScript, jQuery (implied by WebForms scripts), Cloudflare DNS and CDN, Google Tag Manager, SiteBrunch, CookieLaw.org scripts
Frameworks
ASP.NET WebForms
Platforms
Windows Server (implied by ASP.NET), Cloudflare
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • CSRF token present in forms
  • Use of Cloudflare for DDoS protection and CDN
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Marketing tools
CookieLaw.org
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 rich content and navigation.
  2. Strong focus on fire protection products and engineering services.
  3. Use of modern marketing and analytics tools with cookie consent.
  4. No visible security or privacy policy gaps but could improve transparency.
  5. No suspicious or malicious content detected.
  6. Social media presence supports brand trust and engagement.
Technical notes

Notes

The website is built on a mature ASP.NET WebForms framework with Kentico CMS, indicating a stable but somewhat legacy technology stack. Hosting behind Cloudflare provides CDN and security benefits. The site uses JavaScript libraries and integrates Google Tag Manager and cookie consent scripts for marketing and compliance. Performance is moderate with good mobile optimization and clear navigation. There is room for modernization, especially in adopting newer frontend frameworks and improving accessibility and SEO. The technical infrastructure supports the business needs effectively but should evolve to maintain competitiveness and security.
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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