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Security report for nafion.de

The Chemours Company · Energy · Germany

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

64/100

Risk levelMedium

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

The website www.nafion.de represents The Chemours Company’s Nafion™ brand, specializing in membranes, dispersions, and polymers primarily serving the chemical, chlor-alkali, energy, and transportation industries. The site is professionally designed with comprehensive content in German and offers multi-language support, reflecting a mature and enterprise-level business. The company positions itself as a market leader with over 50 years of experience, providing innovative and sustainable solutions. The technical infrastructure leverages modern analytics tools such as Google Tag Manager and Microsoft Application Insights, hosted likely behind Cloudflare, ensuring good performance and security. Security posture is solid with HTTPS and no visible vulnerabilities, though explicit security policies and incident response information are not published. Overall, the site demonstrates high professionalism, trustworthiness, and compliance with privacy regulations, including GDPR.

Scanned

NIS2 and GDPR posture

GDPR outside view
28/ 100 · High
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

8 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 Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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

  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 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
    • 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 nafion.de

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.

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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
85
Security headers
55
Email security
45
DNS health
70
Network security
100
GDPR outside view
28
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

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 nafion.de, from OffSeq Breach.

No leaked records found

Breach holds no records for nafion.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

The Chemours Company operates in the energy and transportation sectors with a focus on advanced membrane technologies. Their business model is B2B, targeting industrial clients requiring high-performance chemical and polymer products. The website content and linked corporate domains indicate a strong market position supported by extensive product offerings and technical resources such as whitepapers. The company maintains a consistent brand presence and leverages social media channels for outreach. No direct contact emails or phone numbers are published, favoring contact forms, which is typical for enterprise businesses. The partnership ecosystem includes the parent Chemours corporate site, reinforcing legitimacy and operational scale.

Security posture

The website exhibits a mature security posture with enforced HTTPS, use of secure analytics scripts, and no exposed sensitive data. However, it lacks explicit security headers and publicly available security or incident response policies, which could enhance trust and preparedness. No vulnerability disclosures or security.txt files are present, indicating room for improvement in transparency and incident management readiness. The absence of direct contact channels for security incidents is a minor gap. Overall, the security risk is low but could be strengthened by adopting best practices in security policy publication and header implementation.

Recommendations

  1. Implement and publish a dedicated security policy and incident response page to improve transparency and readiness.
  2. Add standard security headers such as Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options to enhance protection.
  3. Introduce a vulnerability disclosure program and security.txt file to facilitate responsible reporting.
  4. Consider publishing direct security contact channels (e.g., security@ or abuse@ emails) to improve incident communication.
  5. Regularly audit third-party scripts and dependencies to ensure no vulnerable libraries are included.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
The Chemours Company
Description
Nafion™ Membranen, Dispersionen und Polymere Lösungen steigern die Verfahrenseffizienz in der Chemie-/Chlor-Alkaliindustrie und finden Anwendung im Transportwesen und Energiesektor.
Key services
Nafion™ Sulfonsäuremembranen, Chlor-Alkali-Membranen, Polymer-Dispersionen, Kunststoffe
Content quality
excellent
Branding
consistent

Technology

Stack
Google Tag Manager, Microsoft Application Insights, FontAwesome, Cloudflare Insights
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of secure analytics scripts

Analytics and tracking

Services
Google Tag Manager, Microsoft Application Insights, Cloudflare Insights
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Microsoft Application Insights, Cloudflare Insights
Marketing tools
Microsoft Application Insights
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 in German with multi-language support.
  3. Strong corporate branding linked to The Chemours Company.
  4. Use of modern analytics and tag management tools.
  5. No direct email or phone contact info found on main page; contact via form.
  6. No explicit security or incident response policies published.
  7. Good SEO and accessibility practices observed.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website uses a modern technology stack including Google Tag Manager for marketing and Microsoft Application Insights for telemetry. It is hosted behind Cloudflare, providing CDN and security benefits. The site is mobile-optimized with good accessibility and SEO practices, including proper meta tags and structured navigation. Performance is moderate, with asynchronous loading of scripts and lazy loading of images. No CMS is explicitly detected, suggesting a custom or proprietary platform. The technical implementation is robust but could benefit from enhanced security headers and formalized security documentation.
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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