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Security report for cezenergoservis.cz

ČEZ ENERGOSERVIS spol. s r.o. · Energy · Czech Republic

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

Security score

61/100

Risk levelMedium

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

ČEZ ENERGOSERVIS spol. s r.o. is a Czech company specializing in the service and maintenance of major Czech power plants, including nuclear, hydroelectric, and thermal facilities. It operates as part of the larger Skupina ČEZ energy group, positioning itself as a key player in the Czech energy sector. The website reflects a professional and well-structured digital presence, targeting industry stakeholders and power plant operators with detailed service offerings and corporate information. The company emphasizes its long-standing market presence and technical expertise.

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

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

  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 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 cezenergoservis.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
95
Security headers
30
Email security
98
DNS health
85
Network security
20
GDPR outside view
40
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

Technical appendix

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

Business context

Business profile

The company leverages its affiliation with Skupina ČEZ to maintain a strong market position in energy infrastructure services. Its business model focuses on B2B technical servicing and maintenance, with a portfolio of 13 power plants and a significant workforce. Recent corporate activities include a merger with SALLEKO, indicating strategic growth. The website content and structure support clear communication of services and corporate news, enhancing stakeholder engagement and transparency.

Security posture

The website employs HTTPS with a DigiCert SSL certificate, ensuring secure communications. Cookie consent mechanisms and GDPR compliance are implemented, reflecting attention to privacy regulations. However, explicit HTTP security headers are not detected, and no dedicated security policy or incident response contacts are published. The use of third-party analytics (Smartlook, Google Analytics) is transparent with consent. Overall, the security posture is solid but could benefit from enhanced header policies and published security governance.

Recommendations

  1. Implement HTTP security headers such as Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, and X-XSS-Protection to strengthen security.
  2. Publish a dedicated security policy and incident response contact information to improve transparency and readiness.
  3. Regularly audit and update third-party scripts and analytics tools to mitigate potential vulnerabilities.
  4. Enhance contact information visibility by adding verified company emails and phone numbers for customer and security inquiries.
  5. Maintain and update GDPR and cookie policies to reflect evolving privacy regulations and best practices.

Contact details published on the site

Addresses
Legal name
ČEZ ENERGOSERVIS spol. s r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ČEZ ENERGOSERVIS spol. s r.o.
Description
ČEZ ENERGOSERVIS spol. s r.o. is part of the Skupina ČEZ group, providing service and maintenance of technical components and technological equipment of leading Czech power plants. They design and implement construction solutions.
Key services
Service and maintenance of nuclear power plants, Service and maintenance of hydroelectric power plants, Service and maintenance of thermal power plants
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Smartlook analytics
Frameworks
ProcessWire CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • DigiCert SSL certificate
  • Cookie consent mechanism

Analytics and tracking

Services
Smartlook, Google Analytics (implied by cookies)
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Smartlook
Marketing tools
Smartlook
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.
  2. Professional design and clear navigation.
  3. Strong focus on Czech energy sector services.
  4. Cookie consent and GDPR compliance implemented.
  5. No contact emails or phone numbers explicitly found in HTML content.
  6. WHOIS data unavailable, typical for CZ domains.
  7. Use of ProcessWire CMS and modern web technologies.
  8. Presence of DigiCert SSL seal indicates valid HTTPS.
  9. No signs of malware or phishing.
  10. No explicit security policy or incident response contacts found.
Technical notes

Notes

The website is built on the ProcessWire CMS platform, utilizing modern HTML5, CSS3, and JavaScript technologies. It integrates Smartlook for user behavior analytics and Google Analytics cookies for traffic analysis. The site is mobile-optimized with responsive design and good accessibility features. Performance is moderate, with potential for optimization. The presence of canonical tags, Open Graph metadata, and structured JSON-LD data supports SEO best practices. Hosting provider details are not explicitly identified. Overall, the technical infrastructure is modern and well-maintained.
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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