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Security report for sg-es.sk

Energy Systems · Energy · Czech Republic

High risk. 11 critical or high findings in GDPR outside view, Network security and 2 other checks.

Security score

43/100

Risk levelHigh

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

Energy Systems is a Czech Republic-based company specializing in heating, ventilation, photovoltaics, and other building technologies, targeting primarily builders and homeowners. The company claims over 26 years of market presence and offers comprehensive services from technical consultation to turnkey project realization. The website is professionally designed, mobile-optimized, and uses modern web technologies including WordPress, Yoast SEO, Google Tag Manager, and multiple analytics platforms. Security measures include HTTPS, Google reCAPTCHA on forms, and a cookie consent mechanism via OneTrust. However, the absence of WHOIS data limits domain trust verification, and no explicit privacy policy or contact emails were found, which slightly reduces privacy compliance and business credibility scores. Overall, the website presents a good security posture and professional business presence.

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

11 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

  2. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
    • Critical

      Critical Service Exposed: PostgreSQL

      Port 5432 (PostgreSQL) is publicly accessible - PostgreSQL - Database server

      What to do: Immediately restrict access to PostgreSQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  3. 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"

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

Keep watching sg-es.sk

This scan found 28 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
42
Security headers
35
Email security
60
DNS health
80
Network security
0
GDPR outside view
40
Average
43

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 · found on this site
  • 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 operates in the energy sector with a focus on renewable and efficient building technologies. Its business model includes B2C and B2B sales and services, supported by technical consultation and material supply. The market position is established with over two decades of experience, leveraging certifications like PENB. The website's SEO and content strategy target Czech-speaking customers, with multilingual support for Slovak and English audiences. The company uses multiple analytics and marketing tools to track user behavior and optimize engagement. The lack of explicit contact details and privacy policy pages suggests room for improvement in transparency and customer trust building.

Security posture

The website enforces HTTPS and integrates Google reCAPTCHA to protect forms from spam and abuse. Cookie consent is managed by OneTrust, indicating GDPR awareness. However, security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options were not detected in the provided data, representing an area for enhancement. No vulnerabilities or exposed sensitive data were identified. The absence of a security.txt file or incident response contact information limits the site's readiness for vulnerability disclosure and incident management. Regular updates and security best practices are recommended to maintain and improve security posture.

Recommendations

  1. Implement comprehensive security headers including CSP, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish a clear and accessible privacy policy and terms of service pages to improve compliance and user trust.
  3. Provide explicit company contact emails and phone numbers to enhance business credibility and customer support.
  4. Consider adding a security.txt file to facilitate vulnerability disclosure and improve incident response readiness.
  5. Regularly audit and update WordPress core, themes, and plugins to mitigate risks from outdated software.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Energy Systems
Description
Vytápění, větrání, fotovoltaika a další technologie a služby pro stavebníky nejen rodinných domů zaštítěné PENB. Již přes 26 let na trhu.
Key services
Heating, Ventilation, Photovoltaics, Technical consultation, Material supply, Turnkey project realization
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Yoast SEO, Google Tag Manager, Google Analytics, Microsoft Clarity, Piwik/Matomo, Tailwind CSS, jQuery, Google reCAPTCHA, OneTrust Cookie Consent
Frameworks
WordPress
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Google reCAPTCHA on forms
  • Cookie consent banner implemented

Analytics and tracking

Services
Google Analytics, Microsoft Clarity, Piwik/Matomo
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Microsoft Clarity, Piwik/Matomo
Marketing tools
OneTrust 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 accessible and not blocked by WAF or security mechanisms.
  2. WHOIS data is unavailable, limiting domain trust verification.
  3. Multiple forms use Google reCAPTCHA for spam protection.
  4. Cookie consent is implemented via OneTrust, indicating GDPR awareness.
  5. Website uses modern technologies and SEO best practices.
  6. No explicit contact emails or phone numbers found in provided content; contact via forms only.
  7. No explicit privacy policy or terms of service pages detected in the provided content.
  8. No security.txt or vulnerability disclosure information found.
  9. Website content is professional and relevant to energy systems sector.
Technical notes

Notes

The website is built on WordPress CMS with Yoast SEO plugin for search optimization. It uses Tailwind CSS for styling and jQuery for scripting. Analytics are implemented via Google Analytics, Microsoft Clarity, and Piwik/Matomo, providing comprehensive user behavior insights. Google Tag Manager is used for managing tags and scripts efficiently. The site is mobile-optimized with responsive design and includes accessibility considerations, though these could be further improved. Performance is moderate, with potential for optimization in loading speed and resource management. Hosting provider details were not identified from the provided data.
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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