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Security report for pks.cz

PKS holding a.s. · Real Estate · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

53/100

Risk levelMedium

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

PKS holding a.s. is a large Czech holding company specializing in construction, manufacturing of windows and doors, developer and engineering activities, and leasing commercial spaces. The company operates multiple subsidiaries and serves both private and public investors, positioning itself as a strong regional player with a diversified portfolio. The website reflects a professional and consistent brand image with clear service offerings and references to major projects. Technically, the site uses xartCMS, integrates Google Tag Manager for analytics, and employs Mapy.cz for mapping services. The site is mobile-optimized and provides a cookie consent mechanism compliant with GDPR. Security posture is good with HTTPS enforced, but lacks some advanced security headers and published security policies. WHOIS data is unavailable, likely due to privacy protection, but the website's content and linked domains indicate legitimacy. Overall, the site is safe, professional, and business-focused with no adult or questionable content.

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

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 pks.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
85
Security headers
15
Email security
85
DNS health
85
Network security
20
GDPR outside view
25
Average
53

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

PKS holding a.s. maintains a strong market position in the Czech Republic's construction and manufacturing sectors, leveraging a holding structure with multiple subsidiaries specializing in various related fields. Their business model includes direct construction realization, manufacturing of building components, developer services, and leasing. The company targets both private and public sector clients, emphasizing technical advancement and dynamic growth. The presence of awards, references, and compliance systems enhances their credibility. Their digital ecosystem includes partner and subsidiary domains, reflecting a well-integrated group. The company demonstrates GDPR compliance and uses modern marketing and analytics tools, indicating digital maturity. However, the absence of visible terms of service and security policies suggests areas for improvement in transparency and governance.

Security posture

The website enforces HTTPS and implements a comprehensive cookie consent mechanism aligned with GDPR requirements, indicating a baseline security and privacy awareness. However, the absence of key security headers such as Content Security Policy (CSP), HSTS, and X-Frame-Options reduces the overall security hardening. No incident response or security policy pages are published, which limits transparency and preparedness communication. The site uses third-party scripts including Google Tag Manager and Mapy.cz API, which should be regularly audited for vulnerabilities. No visible vulnerabilities or exposed sensitive data were detected in the HTML content. Overall, the security posture is moderate but could be enhanced by adopting additional best practices and publishing relevant security documentation.

Recommendations

  1. Implement security headers including CSP, HSTS, X-Frame-Options, and X-XSS-Protection to improve site security.
  2. Publish a dedicated security policy and incident response page to enhance transparency and preparedness.
  3. Add a security.txt file to facilitate vulnerability disclosure and improve security communication.
  4. Regularly audit third-party scripts and libraries to mitigate risks from external dependencies.
  5. Enhance accessibility features to improve compliance and user experience for all visitors.

Contact details published on the site

Addresses
Legal name
PKS holding a.s.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
PKS holding a.s.
Description
Strong, stable, technically advanced and dynamically developing group of companies focused on construction deliveries for private and public investors from land purchase to final approval.
Key services
Realization of constructions, Production of windows and doors, Developer and engineering activities, Supply of concrete mixtures, Lease of commercial premises, Lease of office, production and warehouse space, Gastroservice
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, jQuery, xartCMS, Mapy.cz API
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

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 challenge.
  2. WHOIS data is unavailable or privacy protected, limiting domain registration insights.
  3. Strong presence of compliance and cookie consent mechanisms indicating GDPR awareness.
  4. Multiple external domains linked, mostly subsidiaries and partner companies.
  5. No visible security policy or incident response information published.
  6. No terms of service page detected.
  7. Contact information is clearly presented with verified company email and phone.
  8. Website uses modern tracking and analytics tools but lacks advanced security headers.
  9. Content is business-focused, safe, and professional.
  10. Cookie consent is implemented with detailed settings and information.
Technical notes

Notes

The website is built on xartCMS and uses modern JavaScript libraries including jQuery and Google Tag Manager for analytics and marketing. It integrates Mapy.cz API for interactive mapping. The site is mobile responsive with good SEO practices including meta tags and structured navigation. Performance is moderate, with asynchronous loading of analytics scripts. The site lacks advanced accessibility features but provides basic support. No major technical debt or deprecated technologies were detected, though the map API uses a deprecated library version with a developer warning. Hosting provider details are not disclosed. Overall, the technical infrastructure supports a professional and functional web presence with room for modernization in some areas.
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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