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Security report for trhyhk.cz

HRADECKÁ KULTURNÍ A VZDĚLÁVACÍ SPOLEČNOST s.r.o. · Government · Czech Republic

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

55/100

Risk levelMedium

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

HRADECKÁ KULTURNÍ A VZDĚLÁVACÍ SPOLEČNOST s.r.o. is a small Czech company founded in 2020, focused on organizing cultural events and markets in the Hradec Králové region. The website serves as an information portal for various cultural fairs, markets, and community events, targeting the general public interested in local cultural activities. The business model revolves around event organization and providing related services such as rental of tribunes, supported by partnerships with local government and cultural institutions. The company maintains a consistent brand presence and demonstrates trust signals through official registrations and partnerships. Technically, the website is built on the Mijahoo CMS platform and uses common web technologies including jQuery, Bootstrap, Font Awesome, Google Analytics, and Google Tag Manager. It is hosted under a Czech registrar and uses HTTPS with a good SSL configuration. The site is moderately performant, mobile-optimized, and includes basic accessibility features. SEO practices are adequately implemented with proper meta tags and structured navigation. From a security perspective, the site enforces HTTPS and implements a cookie consent mechanism compliant with GDPR using CookieScript. However, it lacks explicit security headers and a dedicated security policy or incident response information. No vulnerabilities or exposed sensitive data were detected in the HTML content. The domain registration data is consistent with the website's business claims, enhancing legitimacy. Overall, the website presents a low-risk profile with good privacy compliance and a professional online presence. Strategic improvements could include adding explicit security policies, implementing security headers, and publishing a vulnerability disclosure policy to enhance trust and security posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 100 · Low
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

6 findings rated critical or high. Fix these first.

  1. 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"

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

Need hands-on remediation? Email guard@offseq.com

Keep watching trhyhk.cz

This scan found 22 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
42
Security headers
35
Email security
70
DNS health
75
Network security
20
GDPR outside view
85
Average
55

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

The company operates in the government and non-profit sector, focusing on cultural event management in Hradec Králové. Its competitive advantage lies in official backing by local government and cultural institutions, enabling access to venues and community engagement. Revenue likely comes from event organization fees, rentals, and possibly municipal funding. The target customers are local residents and visitors interested in cultural markets and festivals. Growth indicators include a structured event calendar and partnerships with multiple regional and media organizations. The partnership ecosystem is robust, involving city authorities, regional government, cultural ministries, and media outlets, which supports credibility and outreach. The company’s operations appear stable with a clear focus on cultural promotion and community services.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enforced and a GDPR-compliant cookie consent mechanism. The absence of HTTP security headers such as Content Security Policy, HSTS, and X-Frame-Options represents an area for improvement. No visible vulnerabilities or sensitive data exposure were found. The lack of a published security policy or incident response contact limits transparency and preparedness for security incidents. Compliance with GDPR is evident but could be enhanced with clearer documentation and dedicated security governance information. Overall, the security posture is adequate for the business type but could benefit from formalized policies and technical hardening.

Recommendations

  1. Implement HTTP security headers including Content Security Policy, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish a dedicated security policy and incident response information on the website to improve transparency and readiness.
  3. Establish and publish a vulnerability disclosure policy or security.txt file to encourage responsible reporting of security issues.
  4. Enhance accessibility features to meet higher standards and improve user experience for all visitors.
  5. Regularly review and update privacy and cookie policies to maintain compliance with evolving regulations and best practices.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
HRADECKÁ KULTURNÍ A VZDĚLÁVACÍ SPOLEČNOST s.r.o.
Description
Kulturní akce Hradec Králové, pronájem tribůn nabízí HRADECKÁ KULTURNÍ A VZDĚLÁVACÍ SPOLEČNOST s.r.o. založena městem Hradec Králové, kulturní služby, akce, letního kina Širák v Hradci Králové.
Key services
Organization of markets and fairs, Cultural event management, Rental of tribunes and event infrastructure
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Bootstrap, Font Awesome, Google Analytics, Google Tag Manager, CookieScript Consent Management
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with granular categories
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
CookieScript
Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is a cultural event and market organizer for Hradec Králové region.
  2. Content is in Czech with multi-language options (CZ, EN, PL).
  3. Uses standard web technologies and CMS Mijahoo.
  4. Cookie consent and GDPR compliance mechanisms are implemented.
  5. No explicit privacy or security policy pages beyond GDPR page found.
  6. No visible contact phone numbers or physical addresses in the main HTML content.
  7. Social media presence includes Facebook page link.
  8. No security.txt or vulnerability disclosure found.
  9. No terms of service page detected.
  10. Website performance and mobile optimization are adequate.
Technical notes

Notes

The website uses a mature CMS (Mijahoo 2.05) and standard front-end libraries such as jQuery and Bootstrap, ensuring compatibility and ease of maintenance. Google Analytics and Tag Manager are used for visitor tracking, integrated with a compliant cookie consent mechanism. Hosting appears to be stable with a Czech-based registrar and nameserver. Performance is moderate with no major issues detected, and the site is mobile responsive. However, the absence of modern frameworks or advanced optimization techniques suggests potential for modernization. Technical debt is low but could be reduced by updating libraries and enhancing security configurations. Overall, the technical infrastructure supports the business needs effectively but has room for modernization and security 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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