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Security report for d-energy.cz

D-energy s.r.o. · Energy · Czech Republic

High risk. 9 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

45/100

Risk levelHigh

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

D-energy s.r.o. is a Czech-based energy services provider specializing in projects that guarantee future savings through the Energy Performance Contracting method. Established in 2011, the company has invested over 650 million CZK in energy-saving projects and is a member of the Czech Association of Energy Service Providers (APES). Their key services include energy services and EPC, construction and delivery works, project documentation, design-build, energy management, and consulting services. The website is professionally designed, well-structured, and optimized for SEO and mobile devices, reflecting a mature digital presence. Technically, the website runs on WordPress with modern plugins such as Yoast SEO, Contact Form 7, and Complianz GDPR for cookie management. It integrates Google Tag Manager and Google Maps API for analytics and location services. Hosting and DNS are managed via REG-WEDOS and Cloudflare, ensuring reliable infrastructure. Performance is moderate with good mobile optimization and basic accessibility features. From a security perspective, the site enforces HTTPS and uses cookie consent mechanisms compliant with GDPR. However, explicit security headers are not visibly set in the HTML, and no published security policy or incident response contacts are found. No vulnerabilities or exposed sensitive data were detected. The domain registration data is consistent with the business claims, showing a mature and trustworthy online presence. Overall, the website presents a low-risk profile with good privacy compliance and business credibility. Strategic improvements in security headers, incident response transparency, and accessibility could further enhance the security posture and trustworthiness.

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

9 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 d-energy.cz

This scan found 27 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.

Daily monitoring

Recommended

€25per month

  • 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
62
Security headers
15
Email security
70
DNS health
80
Network security
20
GDPR outside view
25
Average
45

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention d-energy.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for d-energy.cz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

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

Business context

Business profile

D-energy s.r.o. operates in the energy sector, focusing on sustainable energy savings and EPC projects. Their competitive advantage lies in guaranteed savings contracts and a strong project portfolio with significant investments. The business model revolves around financing and implementing energy-saving measures for clients, targeting public and private sector entities in the Czech Republic. Growth indicators include recent savings achievements and active participation in industry associations. The company maintains a professional online presence with clear service offerings and client engagement channels. Partnerships include membership in APES and LinkedIn presence, supporting credibility and market positioning.

Security posture

The website demonstrates a moderate to good security maturity level with HTTPS enforced and GDPR-compliant cookie management. No critical vulnerabilities or exposed sensitive data were found. However, the absence of explicit security headers and lack of published security policies or incident response contacts indicate areas for improvement. The use of up-to-date libraries and plugins reduces risk, but ongoing monitoring and security audits are recommended. The company should consider publishing a vulnerability disclosure policy and security.txt to enhance transparency and readiness.

Recommendations

  1. Implement and verify HTTP security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web attacks.
  2. Publish a clear security policy and incident response contact information on the website to improve transparency and preparedness.
  3. Conduct regular security audits of plugins, themes, and server configurations to identify and remediate vulnerabilities promptly.
  4. Enhance website accessibility features to comply with standards and improve user experience for all visitors.
  5. Consider adding a vulnerability disclosure program or security.txt file to encourage responsible reporting of security issues.

Contact details published on the site

Addresses
Legal name
D-energy s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
D-energy s.r.o.
Description
Společnost D-energy s.r.o. je zejména poskytovatelem energetických služeb. Specializujeme se hlavně na projekty realizované metodou Energy Performance Contracting.
Key services
Energetické služby a EPC, Dodávky a stavební práce, Projekční práce, Design-Build, Energetický management, Poradenské služby
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Yoast SEO, jQuery, Google Tag Manager, Google Maps API, Contact Form 7, Complianz GDPR plugin, Flexslider, Bootstrap
Frameworks
WordPress
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with opt-in mechanism
  • No exposed sensitive data in HTML
  • Use of security plugins (Complianz GDPR)

Analytics and tracking

Services
Google Analytics (via GTM)
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Tag Manager
Tracking pixels
Google Analytics (via GTM)
Marketing tools
Complianz GDPR Cookie Consent
Transparency
good

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professionally presented in Czech language targeting energy service clients.
  3. Comprehensive cookie consent and GDPR compliance mechanisms are implemented.
  4. Contact information is clearly provided including phone, email, physical address, and contact form.
  5. Use of modern web technologies and SEO best practices.
  6. No visible security policy or incident response information published.
  7. No terms of service page detected.
  8. No vulnerability disclosure or security.txt found.
  9. Social media presence limited to LinkedIn.
  10. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on WordPress CMS with a modern tech stack including Yoast SEO for optimization, Contact Form 7 for user interactions, and Complianz GDPR for privacy compliance. It uses jQuery, Bootstrap, Flexslider, and Google APIs for enhanced functionality. Hosting is managed through REG-WEDOS with DNS via Cloudflare, providing reliable infrastructure. Performance is moderate with good mobile responsiveness and SEO practices. Some technical debt is noted in missing explicit security headers and basic accessibility implementation. Overall, the technical infrastructure supports the business needs effectively but could benefit from security and accessibility enhancements.
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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