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Security report for klee.cz

KLEE s.r.o. · Energy · Czech Republic

Medium risk. 10 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

54/100

Risk levelMedium

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

KLEE s.r.o. is a Czech construction company specializing in earthworks and water infrastructure projects, operating primarily in the Třebíč region and surrounding areas. Founded in 2000, the company has a medium-sized workforce and a fleet of machinery, offering services such as excavation, pipeline installation, and vehicle repair. The website presents basic but relevant business information and certifications, indicating a credible and established market presence. Technically, the website uses legacy HTML and JavaScript with limited modern features, lacks HTTPS, and does not provide privacy or cookie policies despite using Google Analytics, which impacts its security and privacy posture. The security posture is weak due to missing HTTPS and security headers, and the site lacks accessibility and mobile optimization. Overall, the site is functional but requires modernization and improved security and privacy compliance to enhance trust and user experience.

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

10 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 klee.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

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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
52
Security headers
15
Email security
70
DNS health
75
Network security
100
GDPR outside view
10
Average
54

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 klee.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for klee.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 holds ISO certifications indicating quality, environmental, and occupational health and safety management systems, which strengthen its market credibility. Its business model focuses on specialized construction services with a regional client base including municipalities and businesses. The website content and contact details support transparency and accessibility. However, the lack of privacy and cookie policies and absence of incident response or security policies online suggest areas for compliance improvement. The company appears stable with a consistent domain registration history and no suspicious indicators.

Security posture

The website lacks HTTPS, security headers, and privacy policies, which are critical for protecting user data and complying with GDPR. No forms are present, reducing attack surface, but the use of Google Analytics without consent mechanisms is a privacy concern. No incident response or vulnerability disclosure information is provided. The security score is low, and improvements are needed to align with best practices and regulatory requirements.

Recommendations

  1. Implement HTTPS with a valid SSL/TLS certificate to secure all communications.
  2. Add a comprehensive privacy policy and cookie consent mechanism to comply with GDPR.
  3. Deploy security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Consider adding an incident response contact or security policy page to improve transparency.
  5. Modernize website design for mobile responsiveness and accessibility improvements.

Contact details published on the site

Addresses
Legal name
KLEE s.r.o.
Registration number
29259312
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
KLEE s.r.o.
Description
Firma KLEE s.r.o. is a construction company specializing in earthworks, excavation, water and sewage pipeline repairs and installations, and related construction services primarily in the Třebíč region and beyond. Founded in 2000, it has experience in water management construction and operates with a workforce of about 40 employees and a fleet of machinery and vehicles.
Key services
Earthworks, Excavation, Water and sewage pipeline installation and repair, Road motor transport, Vehicle and machinery repair, Locksmith services
Content quality
basic
Branding
moderate

Technology

Stack
HTML 4.01 Transitional, JavaScript (custom image swap scripts), CSS (external stylesheet), Google Analytics (ga.js)
Performance
moderate
Mobile
poor
Accessibility
poor
SEO
basic

Security

Observed score
30/100
Good practices seen
  • No visible exposed sensitive data
  • No vulnerable libraries detected

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
basic
User experience
basic
Content relevance
good
Navigation
basic
Professionalism
basic
Trustworthiness
moderate

Key observations

  1. Website uses legacy HTML and JavaScript techniques.
  2. No privacy or cookie policies found despite use of Google Analytics.
  3. Contact information is clearly presented with multiple phone numbers and email.
  4. Certifications are prominently displayed with downloadable PDFs.
  5. No forms present on the site, limiting data collection risks.
  6. No HTTPS detected in provided data; security posture weak.
  7. Site lacks modern accessibility and mobile optimization features.
Technical notes

Notes

The website is built with legacy HTML and JavaScript, lacking modern frameworks or CMS. It uses external CSS and Google Analytics for tracking. Hosting appears to be with the registrar REG-WEB4U. Performance is moderate but could be improved with modern technologies and optimization. The site is not mobile optimized and has poor accessibility features. There is no evidence of CMS or advanced platform usage, indicating potential technical debt and modernization opportunities.
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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