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Security report for kostax.cz

KOstax s.r.o. · Technology · Czech Republic

High risk. 10 critical or high findings in GDPR outside view, Security headers and 3 other checks.

Security score

48/100

Risk levelHigh

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

KOstax s.r.o. is a Czech Republic-based IT company specializing in comprehensive information technology services including sales of computing equipment, computer networks, IT security, server virtualization, and software solutions such as the Helios Orange information system. The company positions itself as a modern, full-service IT provider targeting small and medium enterprises with a strong regional presence and recognized partnerships such as being a GOLD partner of HP Inc. Their website reflects a professional business model focused on B2B services with clear service offerings and contact information. Technically, the website uses legacy JavaScript libraries and standard web technologies with moderate performance and basic mobile optimization. Security posture is moderate with HTTPS usage but lacks advanced security headers and updated libraries. Privacy compliance is weak due to missing privacy and cookie policies. Overall, the website is trustworthy and professional but could improve in security and compliance areas.

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

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 kostax.cz

This scan found 23 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
67
Security headers
20
Email security
85
DNS health
70
Network security
20
GDPR outside view
25
Average
48

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

KOstax operates in the technology sector providing IT infrastructure, network solutions, and software services primarily to businesses in the Czech Republic. Their competitive advantage includes partnerships with major vendors like HP and expertise in virtualization and security products such as Fortinet. The business model is service and product sales focused on SMEs. The company demonstrates growth through technology adoption and project references. The partnership ecosystem includes recognized global IT brands. The website content and structure support a clear market positioning as a reliable regional IT service provider.

Security posture

The current security maturity level is moderate. The website enforces HTTPS but lacks critical security headers such as Content-Security-Policy and X-Frame-Options. The use of outdated jQuery 1.4.2 presents potential vulnerabilities. No incident response or security contact information is provided. GDPR compliance indicators are missing, and no cookie consent mechanism is implemented. No visible vulnerabilities or exposed sensitive data were detected in the HTML content. Overall, the security posture is functional but requires improvements to meet modern standards and regulatory compliance.

Recommendations

  1. Implement and publish a comprehensive privacy policy and cookie policy with GDPR compliance details.
  2. Upgrade JavaScript libraries, especially jQuery, to current secure versions to mitigate vulnerabilities.
  3. Add security HTTP headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection.
  4. Provide explicit incident response contact information including security@ or abuse@ email addresses.
  5. Enhance mobile optimization and accessibility to improve user experience and SEO.

Contact details published on the site

Addresses
Legal name
KOstax s.r.o.
VAT number
CZ60850353
Registration number
60850353
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
KOstax s.r.o.
Description
Kostax působí v oblasti informačních technologií jako komplexní dodavatel informačních systémů. Hlavní náplní je prodej výpočetní techniky a dodávky počítačových sítí. Jsme moderní firma poskytující úplný sortiment výrobků a široký rámec služeb v oblasti IT.
Key services
Informační systém HELIOS, Počítačové sítě LAN, WAN, WiFi, Datová centra, servery, virtualizace, Bezpečnost IT, Slaboproudé systémy, elektroinstalace, Servis PC a kancelářské techniky, Náhradní a záložní zdroje, Připojení k internetu, Tvorba WWW stránek, Open-source software
Content quality
good
Branding
consistent

Technology

Stack
jQuery 1.4.2, Coin Slider, Clearbox JS, CSS, HTML5 (XHTML namespace), JavaScript
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
60/100
Good practices seen
  • HTTPS enforced (implied by base href https://www.kostax.cz)
  • No visible exposed sensitive data in HTML

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 a professional IT service provider in Czech Republic
  2. Clear contact information and business registration details provided
  3. No privacy or cookie policies found, which is a compliance gap
  4. Uses older JavaScript libraries which may pose security risks
  5. No visible security headers in HTML content
  6. No analytics or tracking scripts detected
  7. No social media links found
  8. Content is in Czech language and focused on IT services and products
  9. Website navigation is clear and structured with multiple service categories
  10. No signs of adult or questionable content
Technical notes

Notes

The website is built using XHTML with CSS and JavaScript, including jQuery 1.4.2, Coin Slider, and Clearbox JS for UI components. The site uses a base HTTPS URL indicating secure transport. The performance is moderate with no advanced frameworks or CMS detected. The site lacks modern responsive design features and accessibility enhancements. SEO is basic with meta keywords and description tags but no Open Graph or structured data. The technical stack is functional but dated, suggesting opportunities for modernization to improve security, performance, and compliance.
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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