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Security report for tech-clean.cz

TechClean, s.r.o. · Manufacturing · Czech Republic

Medium risk. 9 critical or high findings in GDPR outside view, Security headers and 3 other checks.

Security score

50/100

Risk levelMedium

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

TechClean, s.r.o. is a specialized industrial cleaning company based in the Czech Republic, offering advanced cleaning technologies such as laser cleaning, dry ice, steam, and drone cleaning. As part of the TSC Group, the largest cleaning and technical services holding in the Czech Republic, TechClean benefits from a strong market position and a broad service portfolio including outdoor maintenance and technical consulting. The website is professionally designed, mobile-optimized, and provides clear contact information and service descriptions. Technically, the site uses modern JavaScript libraries and frameworks, including Google Tag Manager and Nette Framework for form validation, ensuring a good user experience and moderate performance. Security posture is adequate with HTTPS and reCaptcha on forms, but lacks visible advanced security headers and explicit cookie consent mechanisms. WHOIS data is unavailable, limiting domain trust verification, but the business legitimacy is supported by its association with TSC Group. Overall, the site is trustworthy and professional but could improve security and privacy transparency.

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

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  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 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';…

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  • TLS certificates and expiry
  • DNS records
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  • Security headers
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  • 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
72
Security headers
30
Email security
65
DNS health
85
Network security
20
GDPR outside view
25
Average
50

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

TechClean operates in the manufacturing and industrial cleaning sector, targeting industrial and commercial clients requiring specialized cleaning services. Its business model focuses on providing technologically advanced cleaning solutions and facility maintenance. The company is part of a large holding group with multiple subsidiaries, enhancing its market reach and operational capabilities. The website reflects a medium-sized enterprise with consistent branding and professional content. The presence of ISO certifications and a broad service offering indicates a competitive advantage. The company leverages partnerships within the TSC Group ecosystem, which strengthens its market position and service integration. Growth indicators include the use of innovative cleaning technologies and a comprehensive service portfolio.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enabled and use of Google Tag Manager asynchronously. Forms include reCaptcha for spam prevention and GDPR consent checkboxes for data processing. However, the absence of explicit security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces the overall security posture. No vulnerability disclosures or incident response contacts are provided, indicating potential gaps in security transparency. The lack of a dedicated privacy or security policy page on the main domain is a compliance gap, although the parent group site provides cookie and GDPR information. Overall, the site is secure for general use but would benefit from enhanced security controls and clearer compliance documentation.

Recommendations

  1. Implement HTTP security headers including CSP, HSTS, and X-Frame-Options to strengthen security.
  2. Add an explicit cookie consent mechanism to comply with privacy regulations and improve user transparency.
  3. Publish dedicated privacy and security policy pages on the main domain to enhance compliance and trust.
  4. Conduct regular security audits of third-party scripts and dependencies to mitigate vulnerabilities.
  5. Obtain and publish WHOIS information or ensure domain registration transparency to improve legitimacy trust.

Contact details published on the site

Addresses
Legal name
TechClean, s.r.o.
VAT number
CZ60777541
Registration number
C 6866 vedená u Krajského soudu v Ostravě
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
TechClean, s.r.o.
Description
Specialists in industrial cleaning using modern technologies such as laser cleaning, dry ice, steam, high-pressure cleaning, and drone cleaning. They also provide outdoor maintenance, greenery adjustment, height work, moving services, and technical consulting.
Key services
Industrial cleaning, Laser cleaning, Special technologies cleaning, Height work, Outdoor maintenance, Other cleaning services
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Swiper.js, Bootstrap (modal, buttons), Nette Framework (form validation JS)
Frameworks
Nette
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS usage (implied by canonical URL)
  • Use of Google Tag Manager asynchronously
  • Form with reCaptcha key present

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

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 in Czech language with multi-language navigation options.
  3. Company is part of a larger holding group with multiple subsidiaries.
  4. Contact information is clearly provided including phone, email, physical addresses, and a contact form with GDPR consent checkbox.
  5. Use of modern web technologies and asynchronous loading of analytics scripts.
  6. No explicit privacy or security policy pages found on the main domain, but linked group site provides cookie and GDPR information.
  7. No visible security headers or advanced security configurations detected in provided data.
  8. No vulnerability disclosure or incident response information found.
  9. WHOIS data is missing or unavailable, limiting domain trust verification.
Technical notes

Notes

The website uses a modern technology stack including Google Tag Manager for analytics and tracking, Swiper.js for interactive carousels, and the Nette Framework for form validation. The site is mobile-optimized with responsive design and good navigation clarity. Performance is moderate with asynchronous script loading. However, no CMS or hosting provider information is evident. Accessibility features are basic but present. SEO optimization is good with proper meta tags and Open Graph data. Technical risks include missing security headers and incomplete privacy compliance mechanisms. Opportunities exist to enhance security posture and improve privacy transparency to align with best practices.
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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