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Security report for pre.cz

Energy · Czech Republic

Medium risk. 5 critical or high findings in GDPR outside view and Security headers.

Security score

75/100

Risk levelMedium

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

The website www.pre.cz appears to be the official site of an energy company, likely Pražská energetika, serving customers in the Czech Republic. However, the current accessible content is limited to a CAPTCHA challenge page designed to prevent automated access, which restricts the ability to analyze the full website content and services. The minimal visible content includes a company logo and a CAPTCHA form, with no visible privacy, cookie, or terms of service policies, nor contact information or social media links. The WHOIS lookup failed to return any registration data, which raises concerns about domain registration transparency or privacy protection usage. From a technical perspective, the site uses JavaScript and standard HTML but lacks detectable modern frameworks or CMS indicators. No external analytics or advertising scripts were found, and no security headers or SSL configuration details were available from the provided data. The CAPTCHA challenge indicates a security mechanism is in place, but it also impacts user experience and accessibility. Security posture is weakly observable due to limited content access. The absence of privacy and cookie policies, contact information, and WHOIS data reduces trust and compliance confidence. There are no indications of adult or explicit content, and the site is rated safe for general audiences. Overall, the site’s current state suggests it is either under maintenance, protected by aggressive security controls, or misconfigured, limiting its usability and transparency. Strategic recommendations include improving transparency by publishing privacy and cookie policies, providing clear contact information, ensuring WHOIS data is available and accurate, and optimizing the CAPTCHA implementation to balance security with user experience.

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

5 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 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 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 pre.cz

This scan found 15 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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Recommended

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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
100
Security headers
65
Email security
73
DNS health
85
Network security
100
GDPR outside view
25
Average
75

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 domain www.pre.cz is associated with an energy sector business, presumably Pražská energetika, a major energy supplier in the Czech Republic. The business model focuses on energy supply and customer services. The lack of visible content and contact details limits insight into competitive advantages or revenue streams. The CAPTCHA challenge suggests a focus on security but may hinder customer engagement. No partner or subsidiary domains were identified. The company likely targets residential and commercial energy consumers in its region. Growth indicators and partnership ecosystems cannot be assessed due to limited data.

Security posture

The website employs a CAPTCHA challenge to prevent automated access, indicating some level of security awareness. However, the absence of visible security headers, privacy policies, and contact information for incident response reduces the overall security maturity. No vulnerabilities or exposed sensitive data were detected, but the lack of transparency and WHOIS data raises concerns. Compliance with GDPR or other data protection regulations cannot be confirmed. Incident response readiness and security culture indicators are not observable. The security posture is currently weak due to limited accessible information and lack of standard security disclosures.

Recommendations

  1. Publish comprehensive privacy and cookie policies to improve compliance and user trust.
  2. Ensure WHOIS domain registration data is accurate and publicly available to enhance legitimacy.
  3. Provide clear contact information including support emails and phone numbers for customer and security inquiries.
  4. Optimize CAPTCHA implementation to reduce user friction while maintaining security.
  5. Implement and document security headers and SSL best practices to strengthen security posture.
Site observations

Automated reading of the public site. Ratings are indicative.

Generic detected. The website content is a CAPTCHA challenge page designed to prevent automated access, indicating a WAF or security mechanism is active. These observations may be incomplete. For a fuller analysis, contact guard@offseq.com.

Business

Description
The website appears to be related to PRE (Pražská energetika), an energy company likely operating in the Czech Republic. The content is minimal and primarily shows a CAPTCHA challenge page preventing automated access.
Key services
Energy supply, Customer services
Content quality
poor
Branding
moderate

Technology

Stack
JavaScript, HTML5

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
poor
User experience
poor
Content relevance
poor
Navigation
poor
Professionalism
poor
Trustworthiness
low

Key observations

  1. Website content is blocked by a CAPTCHA challenge, limiting analysis.
  2. No WHOIS data available, indicating privacy protection or domain registration issues.
  3. No privacy, cookie, or terms of service policies found.
  4. No contact information or social media links present.
  5. Minimal content with only a CAPTCHA form and company logo visible.
  6. No external analytics or advertising scripts detected.
  7. No security headers or SSL information available from provided data.
Technical notes

Notes

The website uses basic HTML and JavaScript with no detected CMS or advanced frameworks. The presence of a CAPTCHA challenge script indicates some security controls but also impacts accessibility. No external analytics or marketing tools were detected, suggesting minimal tracking or advertising. Hosting provider and performance metrics are unknown due to limited content access. Mobile optimization and SEO cannot be assessed. The technical infrastructure appears minimal and possibly under maintenance or restricted by security policies.
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

Earlier scans of this domain

  1. 75/100Medium23 findingsView report
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