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Security report for renoenergie.cz

RenoEnergie a.s. · Energy · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

62/100

Risk levelMedium

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

RenoEnergie a.s. is a Czech renewable energy company specializing in the operation of small hydroelectric power plants and the development of small wind farms. Established in 2004, the company has a solid regional presence with eight hydroelectric plants and ongoing projects in wind energy, primarily in Moravskoslezský and Olomoucký regions. The company collaborates closely with municipalities and local communities, supporting environmental cultivation and infrastructure projects such as fish passages and cycle paths. Their business model focuses on sustainable energy production and community engagement, positioning them as a trusted player in the Czech renewable energy sector. Technically, the website is built on WordPress with modern front-end frameworks like UIkit and Leaflet.js for interactive maps. It employs standard plugins for contact forms, GDPR compliance, and security enhancements. The site is mobile-optimized, SEO-friendly, and uses structured data for improved search engine visibility. Performance is moderate with room for optimization, and accessibility is basic but functional. From a security perspective, the site uses HTTPS with a good SSL configuration and employs security plugins to mitigate common WordPress vulnerabilities. Cookie consent mechanisms are in place, reflecting GDPR compliance. However, explicit security policies, incident response contacts, and vulnerability disclosure mechanisms are absent, representing areas for improvement. No critical vulnerabilities or exposed sensitive data were detected. Overall, RenoEnergie.cz presents a professional and trustworthy online presence consistent with its business operations. The domain age and WHOIS data align with the company's history, supporting legitimacy. Strategic recommendations include enhancing security headers, publishing security policies, and establishing formal vulnerability disclosure channels to strengthen security posture and stakeholder 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

8 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 renoenergie.cz

This scan found 21 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
67
Security headers
15
Email security
65
DNS health
85
Network security
100
GDPR outside view
40
Average
62

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

RenoEnergie a.s. operates in the renewable energy sector with a focus on small hydroelectric and wind power projects. Their competitive advantage lies in their long-standing presence since 2004 and strong local partnerships with municipalities. The company generates revenue through ownership and operation of energy assets and likely benefits from environmental and community support initiatives. Their target customers include local governments, environmental organizations, and energy consumers interested in sustainable sources. The partnership ecosystem includes related companies like RE MVE, MVE RenoEnergie, and RE Holding, as well as project partners renoprojekt.cz and mverenoenergie.cz. Growth indicators include recent corporate restructuring and expansion into wind energy. The company maintains a moderate digital footprint with a professionally maintained website and active compliance with privacy regulations.

Security posture

The website demonstrates a moderate to good security maturity level. HTTPS is enforced with strong SSL configuration, and security plugins are deployed to protect the WordPress environment. Cookie consent and GDPR compliance are actively managed. However, the absence of explicit security policies, incident response contacts, and vulnerability disclosure mechanisms indicates gaps in formal security governance. No critical vulnerabilities or exposed sensitive data were found, but the lack of security headers and formal documentation could expose the site to certain risks. The company should consider publishing a security.txt file and enhancing HTTP security headers to improve defense-in-depth. Incident response readiness and security culture indicators are not publicly visible, suggesting an opportunity to increase transparency and stakeholder confidence.

Recommendations

  1. Implement HTTP security headers such as Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, and X-XSS-Protection to enhance browser security.
  2. Publish a dedicated security policy page outlining security practices and incident response procedures.
  3. Establish and publicize a vulnerability disclosure program, including a security.txt file to facilitate responsible reporting.
  4. Regularly audit and update WordPress plugins and themes to mitigate vulnerabilities.
  5. Enhance accessibility features and perform performance optimizations to improve user experience and SEO.

Contact details published on the site

Addresses
Legal name
RenoEnergie a.s.
VAT number
CZ27128164
Registration number
27128164
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
RenoEnergie a.s.
Description
RenoEnergie a.s. operates small hydroelectric power plants and develops small wind farms in the Czech Republic. The company manages 8 small hydroelectric plants, has installed 11.176 MW of power, and engages in environmental cultivation projects such as fish passages, cycle paths, and local community support.
Key services
Operation of small hydroelectric power plants, Development of small wind farms, Environmental cultivation and community support projects
Content quality
good
Branding
consistent

Technology

Stack
WordPress, jQuery, UIkit, Leaflet.js, Contact Form 7, Complianz GDPR plugin, Better WP Security plugin
Frameworks
UIkit
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enabled
  • Use of security plugins (Better WP Security)
  • Cookie consent management (Complianz GDPR)
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Google Analytics (UA-90600930-1, G-4LEYP0FWEX)
Marketing tools
Complianz GDPR cookie consent
Transparency
basic

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 and relevant to renewable energy sector.
  3. Good use of structured data and SEO metadata.
  4. Cookie consent and GDPR compliance mechanisms are implemented.
  5. No explicit security policy or incident response information found.
  6. Contact information is clearly provided with multiple channels.
  7. No terms of service or vulnerability disclosure pages detected.
Technical notes

Notes

The website is built on WordPress 6.0.11, utilizing jQuery, UIkit framework, and Leaflet.js for interactive mapping. It uses Contact Form 7 for form handling and Complianz GDPR plugin for cookie consent management. The site loads multiple CSS and JS assets, including custom theme styles and scripts. Performance is moderate with some inline CSS and multiple external dependencies. Mobile optimization is good with responsive design elements. SEO is supported by All in One SEO plugin with structured JSON-LD data and Open Graph metadata. Hosting provider is not explicitly identified. The site uses clustered Leaflet markers for map visualization, indicating a moderate level of front-end interactivity. Overall, the technical stack is modern but could benefit from performance tuning and enhanced security headers.
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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