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Security report for trz.cz

TŘINECKÉ ŽELEZÁRNY, a. s. · Manufacturing · Czech Republic

Low risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

77/100

Risk levelLow

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

Třinecké železárny – Moravia Steel is the largest steel producer in the Czech Republic, with a strong focus on sustainable development, ecological production, and regional engagement. The company offers a broad portfolio of steel products including bar steel, rails, wire, seamless tubes, and semi-finished products. The website reflects a mature, professional industrial business with clear branding and comprehensive product information. The domain age and WHOIS data support the company's long-standing market presence since 1996. Technically, the website uses modern web technologies including Bootstrap for responsive design, Google Analytics for traffic analysis, and CookieYes for GDPR-compliant cookie consent management. The site is well-structured, mobile-optimized, and accessible, with good SEO practices. However, some security best practices such as explicit security headers and published security policies are missing. From a security perspective, the site uses HTTPS and implements a detailed cookie consent mechanism, indicating good privacy compliance. There is no visible incident response or vulnerability disclosure information, which could be improved. No critical vulnerabilities or suspicious content were detected. Overall, the security posture is solid but could be enhanced with additional transparency and technical controls. The overall risk assessment is low, with the site representing a credible, professional industrial business. Strategic recommendations include adding a security policy, incident response contacts, and security.txt file, as well as implementing security headers to strengthen defenses and trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 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

4 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

      Third-party services without privacy policy

      Detected services: Facebook, LinkedIn, YouTube

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

  2. 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.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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Keep watching trz.cz

This scan found 16 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
95
Email security
75
DNS health
85
Network security
100
GDPR outside view
40
Average
77

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

Třinecké železárny holds a dominant position in the Czech steel manufacturing sector, leveraging its extensive product range and commitment to sustainability as competitive advantages. The business model centers on B2B sales of steel products, supported by strong regional ties and social responsibility initiatives. Revenue streams are primarily from steel product sales, with additional value from certifications and quality guarantees. The company targets industrial clients, regional partners, and potential employees. Growth indicators include active communication of sustainability efforts and educational partnerships. The partnership ecosystem includes vocational schools, unions, and career platforms, enhancing workforce development and community engagement.

Security posture

The website demonstrates a moderate to good security maturity level. HTTPS is enabled, and cookie consent is managed with granular user controls, reflecting GDPR compliance. However, the absence of explicit security headers (e.g., CSP, HSTS) and lack of published security or incident response policies represent gaps. No exposed sensitive data or vulnerable libraries were detected in the HTML content. The site lacks a vulnerability disclosure program or security.txt file, limiting transparency for security researchers. Overall, the security culture appears adequate but could benefit from formalized policies and enhanced technical controls.

Recommendations

  1. Publish a comprehensive security policy and incident response contact information on the website.
  2. Implement and verify HTTP security headers such as Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, and X-Content-Type-Options.
  3. Create and maintain a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Regularly audit and update third-party libraries and scripts to mitigate potential vulnerabilities.
  5. Enhance transparency and user trust by providing detailed data retention policies and privacy notices.

Contact details published on the site

Addresses
Legal name
TŘINECKÉ ŽELEZÁRNY, a. s.
VAT number
CZ699002812
Registration number
18050646
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
TŘINECKÉ ŽELEZÁRNY, a. s.
Description
Třinecké železárny – Moravia Steel je největší producent oceli v České republice, kladoucí důraz na udržitelný rozvoj, ekologizaci výroby a regionální rozvoj.
Key services
Výroba tyčové oceli, Výroba kolejnic a příslušenství, Válcovaný drát, Bezešvé ocelové trubky, Polotovary, Lesklá ocel, Plochá a široká ocel, Další produkty jako struska a koksochemické výrobky
Content quality
excellent
Branding
consistent

Technology

Stack
Bootstrap (navbar, responsive design), Google Analytics (gtag.js), CookieYes (cookie consent management), Custom JavaScript and CSS, HTML5 video element
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
70/100
Good practices seen
  • Cookie consent banner with granular controls
  • No visible exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
YouTube embedded video cookies
Marketing tools
CookieYes
Transparency
basic

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 Czech with multilingual support.
  3. Strong emphasis on sustainability and regional development.
  4. Comprehensive cookie consent mechanism implemented.
  5. No visible security policy or incident response contacts.
  6. No terms of service page explicitly found.
  7. Active social media presence on major platforms.
  8. WHOIS data is minimal but domain age supports legitimacy.
Technical notes

Notes

The website infrastructure is built on modern, widely adopted technologies including Bootstrap for responsive UI and Google Analytics for traffic monitoring. CookieYes is used for cookie consent management, ensuring GDPR compliance. The site uses HTML5 video elements and custom CSS/JS for enhanced user experience. Performance is moderate with room for optimization, especially in loading times and asset management. Accessibility features such as skip links and ARIA labels are present, supporting inclusive design. No CMS or hosting provider details were detected. Technical risks are minimal but could be reduced by implementing security headers and improving performance metrics.
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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