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Security report for cvrez.cz

Centrum výzkumu Řež s.r.o. · Energy · Czech Republic

Medium risk. 6 critical or high findings in GDPR outside view and SSL/TLS.

Security score

70/100

Risk levelMedium

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

Centrum výzkumu Řež s.r.o. is a Czech research organization specializing in nuclear energy research, development, and innovation. The company operates significant research infrastructure including nuclear reactors and technological loops, serving both domestic and international clients. It holds an important position in the Czech energy research sector and collaborates with multiple partners and projects. The website reflects a professional and well-structured digital presence with clear business information and active communication channels. Technically, the website uses modern JavaScript libraries such as Swiper.js for carousels, Google Tag Manager for analytics, and integrates Google Maps API. The site is mobile-optimized, accessible, and SEO-friendly. Privacy and cookie consent mechanisms are implemented in compliance with GDPR. However, no CMS or hosting provider details are explicitly detected. From a security perspective, the site enforces HTTPS and uses secure forms with validation. It lacks published security policies and incident response contacts, which are recommended for improved transparency and readiness. No vulnerabilities or exposed sensitive data were detected in the content. The absence of WHOIS data for the domain is a notable concern, reducing trust in domain legitimacy despite the professional website content. Overall, the website is a credible and professional representation of a specialized research entity with good technical and privacy practices. Strategic improvements in security policy publication and domain registration transparency would enhance trust and compliance.

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

6 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, Twitter, LinkedIn, YouTube, Google APIs

      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

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

Keep watching cvrez.cz

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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
42
Security headers
80
Email security
85
DNS health
85
Network security
100
GDPR outside view
25
Average
70

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

The organization is positioned as an essential research entity in the nuclear energy sector, focusing on reactor operation, nuclear safety, materials diagnostics, energy technologies, and technological projects. Its business model revolves around providing research and development services, leveraging advanced infrastructure and international collaborations. The company targets research institutions, energy sector professionals, and academic communities. The presence of multiple partner domains and active social media channels indicates a robust partnership ecosystem. The website content and structure suggest a medium-sized organization with a strong market presence in the Czech Republic. The parent company is ÚJV Řež, a.s., which further supports its credibility and operational scale.

Security posture

The website demonstrates a mature security posture with HTTPS enforcement, secure form handling, and cookie consent management. However, the lack of a publicly available security policy and incident response contact reduces transparency and preparedness for security incidents. No security headers were explicitly detected in the provided data, suggesting room for improvement in HTTP security configurations. The absence of a security.txt file or vulnerability disclosure policy limits external reporting capabilities. Overall, the site is secure but could benefit from enhanced security governance documentation and communication.

Recommendations

  1. Publish a comprehensive security policy and incident response information on the website.
  2. Implement and expose a security.txt file to facilitate vulnerability reporting.
  3. Enhance HTTP security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Investigate and resolve the missing WHOIS data issue to improve domain legitimacy and trust.
  5. Regularly audit third-party scripts and tracking tools to ensure no vulnerabilities or privacy risks.

Contact details published on the site

Addresses
Legal name
Centrum výzkumu Řež s.r.o.
VAT number
CZ26722445
Registration number
26722445
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Centrum výzkumu Řež s.r.o.
Description
Hlavním posláním společnosti je výzkum, vývoj a inovace v oboru energetiky, zejména jaderné. Disponuje významnou výzkumnou a experimentální infrastrukturou včetně výzkumných reaktorů LVR-15 a LR-0 a technologických smyček.
Key services
Provoz reaktorů, Jaderná bezpečnost, Materiály a diagnostika, Energetické technologie, Technologické projekty
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, jQuery (implied by $ function usage), Swiper.js (carousel), PhotoSwipe (image gallery), Google Maps API
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management for cookies
  • No exposed sensitive data in HTML
  • Secure forms with validation

Analytics and tracking

Services
Google Tag Manager
Tracking level
minimal
Privacy practices
good

Advertising

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, which is a concern for domain legitimacy verification.
  3. Strong focus on nuclear energy research and related scientific services.
  4. Good privacy and cookie consent mechanisms implemented.
  5. No visible security policy or incident response information published.
  6. Multiple external partner domains linked, indicating collaboration.
  7. No suspicious or malicious content detected.
  8. Use of modern JavaScript libraries and Google Tag Manager for analytics.
  9. Contact information is clearly presented with verified company emails and phone numbers.
Technical notes

Notes

The website uses a modern front-end stack with JavaScript libraries including Swiper.js for interactive sliders and PhotoSwipe for image galleries. Google Tag Manager is employed for analytics and marketing tracking, with consent management implemented to comply with privacy regulations. The site is mobile responsive and accessible, with good SEO practices evident from meta tags and structured content. No CMS or hosting provider information was detected, which may indicate a custom or proprietary platform. Performance is moderate, with potential for optimization in loading times and script management. The technical infrastructure supports a professional and user-friendly experience but could be enhanced with additional security headers and performance tuning.
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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