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Security report for nkt.cz

NKT A/S · Energy · Czech Republic

Medium risk. 11 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

54/100

Risk levelMedium

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

NKT A/S is a well-established company specializing in the manufacturing and supply of cables and cable accessories primarily for the energy sector. With a history dating back to 1891, NKT positions itself as a leading European supplier offering a comprehensive range of products including low, medium, and high voltage cables, as well as related services such as 24-hour cable service and cable laying via specialized vessels. The website reflects a mature digital presence with professional design, clear navigation, and multilingual support targeting energy sector professionals and partners. Technically, the website is built on modern frameworks such as Next.js and React, incorporating advanced features like consent management via Usercentrics and analytics through Google Tag Manager. The site is mobile-optimized and demonstrates good SEO and accessibility practices, although some security headers could be enhanced. The absence of WHOIS data due to privacy protection is noted but does not detract significantly from the site's legitimacy given the professional content and certifications displayed. From a security perspective, the site enforces HTTPS and employs consent mechanisms for privacy compliance, aligning with GDPR requirements. However, explicit incident response contacts and vulnerability disclosure mechanisms are not present, representing areas for improvement. Overall, the site maintains a strong security posture with no evident vulnerabilities or malicious content. The risk assessment indicates a low risk profile with recommendations to enhance security headers and publish incident response information to further bolster trust and compliance. The company’s digital maturity and business credibility are high, supporting its market position as a trusted energy sector partner.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 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

11 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

  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

  3. 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 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 nkt.cz

This scan found 26 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
67
Security headers
30
Email security
40
DNS health
75
Network security
100
GDPR outside view
10
Average
54

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

NKT operates in the energy sector with a focus on cable manufacturing and related services. Its competitive advantage lies in its long history, comprehensive product portfolio, and integrated service offerings including cable accessories and installation support. Revenue streams likely derive from product sales and service contracts. The target customers are energy utilities, infrastructure developers, and industrial clients. Growth indicators include recent news of organic growth and EBITDA improvements. The company maintains a broad partnership ecosystem with certifications from Ecovadis, Europacable, and The Copper Mark, enhancing its market credibility. Strategic observations highlight a shift from pure manufacturing to a service-oriented business model, emphasizing sustainability and customer partnership.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and use of a consent management platform ensuring GDPR compliance. No exposed sensitive data or vulnerable libraries were detected. However, the absence of security.txt and incident response contact information limits transparency in vulnerability management. Security headers such as Content-Security-Policy and X-Frame-Options are not explicitly observed and should be implemented to mitigate common web threats. The site does not show signs of malware or phishing. Overall, the security maturity is good but can be improved by adopting best practices in security headers and incident response disclosures.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish a security.txt file and provide clear incident response contact information to facilitate responsible vulnerability disclosure and improve transparency.
  3. Regularly audit third-party scripts and libraries to ensure no vulnerabilities are introduced via dependencies.
  4. Enhance privacy compliance by detailing data retention policies and user rights in accessible documentation.
  5. Maintain and update certifications and trust indicators prominently to reinforce business credibility and customer confidence.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
NKT A/S
Description
Jsme předním dodavatelem kabelů a příslušenství kabelů pro energetický sektor. NKT vyvíjí a nabízí vysoce kvalitní kabely, příslušenství kabelů a služeb v oblasti kabelů.
Key services
výroba nn kabelů (do 1 kV), výroba vn kabelů (do 50 kV), výroba vvn kabelů (do 550 kV), příslušenství kabelů, Cable service, 24hodinový servis, pokládka kabelů lodí
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Usercentrics CMP, SVG icons, CSS-in-JS (styled-components or similar)
Frameworks
Next.js
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management via Usercentrics
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
minimal
Privacy practices
good

Advertising

Marketing tools
Usercentrics Consent Management Platform
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 rich content and professional design.
  2. No WHOIS data available, likely due to privacy protection or CZ NIC registry policies.
  3. Strong focus on energy sector cable manufacturing and services.
  4. Multiple certifications and memberships indicate compliance and trust.
  5. No direct email addresses or phone numbers found in HTML; contact via contact page form.
  6. Use of modern web technologies and consent management platform.
  7. No security.txt or explicit incident response contacts found.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website is built using Next.js and React, leveraging server-side rendering for performance and SEO benefits. It uses modern web standards including responsive images and SVG icons. Consent management is handled by Usercentrics, and analytics are integrated via Google Tag Manager. The site shows good mobile optimization and accessibility features. Performance is moderate, with potential for improvement through optimization of image delivery and script loading. Hosting provider details are not explicit. The technical stack reflects a modern, maintainable infrastructure suitable for a large corporate website.
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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