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Security report for energylink.cz

Energylink s.r.o. · Energy · Czech Republic

Medium risk. 9 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

51/100

Risk levelMedium

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

Energylink s.r.o. is a Czech Republic-based company specializing in innovative energy technologies for buildings, including heating, cooling, hot water preparation, and electricity production. The company targets public administration, private firms, and residential building owners, positioning itself as a reliable provider of energy-efficient solutions. Their website reflects a professional and modern digital presence, utilizing Bootstrap and jQuery frameworks, with good mobile responsiveness and clear navigation. However, the absence of WHOIS data raises concerns about domain registration legitimacy, although the website content and contact details appear genuine and consistent with the business claims. Security posture is solid with HTTPS and no visible vulnerabilities, but the lack of security headers and privacy policies indicates room for improvement. Overall, the site is trustworthy and well-maintained but would benefit from enhanced compliance and transparency measures.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 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 energylink.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.

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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
20
Email security
85
DNS health
75
Network security
20
GDPR outside view
10
Average
51

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 energylink.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for energylink.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

The company operates in the energy sector, focusing on sustainable and efficient building technologies. It leverages partnerships with related firms to deliver complex projects, including those under subsidy regulations. The business model centers on technology design and installation services, serving a niche market of governmental bodies, private companies, and residential clients. The website's content quality and branding consistency support a credible market position. However, the lack of publicly available WHOIS data and privacy policies may impact stakeholder trust. The company appears small-sized with a focused regional presence in the Czech Republic.

Security posture

The website enforces HTTPS and avoids exposing sensitive data, reflecting a good baseline security posture. However, it lacks important security headers such as Content-Security-Policy and X-Frame-Options, which could mitigate certain attack vectors. There is no visible incident response or vulnerability disclosure information, which limits transparency and preparedness perception. No tracking or analytics scripts were detected, reducing privacy risks but also limiting user behavior insights. The absence of privacy and cookie policies is a compliance gap, especially under GDPR. Overall, the security maturity is moderate with clear areas for enhancement.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies to improve GDPR compliance and user trust.
  2. Add security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen defense against common web attacks.
  3. Establish and publicize an incident response contact or security email to enhance transparency and readiness.
  4. Consider adding a vulnerability disclosure policy or security.txt file to encourage responsible reporting of security issues.
  5. Improve accessibility features to ensure compliance with standards and enhance user experience for all visitors.

Contact details published on the site

Addresses
Legal name
Energylink s.r.o.
VAT number
CZ05868513
Registration number
05868513
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Energylink s.r.o.
Description
Specializes in design and installation of innovative technologies for heating, cooling, hot water preparation, and electricity production focused on energy efficiency and sustainability. Serves public administration, private companies, and residential building owners.
Key services
Heating technology, Cooling technology, Hot water preparation, Electricity production
Content quality
good
Branding
consistent

Technology

Stack
Bootstrap, jQuery, Google Fonts, Lightbox
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

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 challenge
  2. No privacy, cookie, or terms of service policies found
  3. Contact info includes company email and physical address
  4. No phone numbers or social media links explicitly found
  5. No security.txt or vulnerability disclosure policy present
  6. WHOIS data unavailable, which is a concern for domain legitimacy
  7. Website uses modern frontend technologies and is mobile responsive
  8. No analytics or tracking scripts detected
  9. No advertising or marketing scripts detected
Technical notes

Notes

The website uses a modern frontend stack with Bootstrap and jQuery, ensuring responsive design and interactive elements like carousels and lightboxes. Google Fonts integration enhances typography. The site loads external scripts from reputable CDNs, contributing to performance and reliability. No CMS or backend technologies were detected from the HTML content. Performance is moderate with no evident blocking or errors. The site lacks analytics or marketing scripts, indicating minimal user tracking. Technical debt appears low, but the absence of security headers and privacy mechanisms suggests opportunities for modernization and compliance improvements.
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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