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Security report for tajemstvitrezoru.cz

Dvořák Systems, s.r.o. · Hospitality · Czech Republic

High risk. 9 critical or high findings in GDPR outside view, Network security and 1 other check.

Security score

46/100

Risk levelHigh

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

The website 'Tajemství Zvířetického trezoru' is a professionally designed platform promoting a seasonal interactive treasure hunt game for families and tourists at the Zvířetice castle ruins in the Czech Republic. It is organized by the local Tourist Information Center and supported by the city of Bakov nad Jizerou. The site effectively communicates the event's story, schedule, and contact information, targeting families with children and local visitors interested in cultural heritage and educational activities. Technically, the site uses standard web technologies including jQuery and the Mapy.cz API for map integration, though the map API version is deprecated, posing a technical risk. The site is moderately optimized for mobile and accessibility but lacks advanced SEO and performance optimizations. Security posture is basic with no visible security headers and no privacy or cookie policies, indicating compliance gaps. No blocking or WAF mechanisms were detected, and the domain registration data aligns well with the website's local business focus, supporting legitimacy. Overall, the site is functional and trustworthy but would benefit from improved security and privacy compliance measures.

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

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

  2. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  3. 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"

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

Keep watching tajemstvitrezoru.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

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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
30
Email security
70
DNS health
80
Network security
0
GDPR outside view
10
Average
46

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 · found on this site
  • 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 business operates in the hospitality and cultural tourism sector, focusing on local event-based educational entertainment. Its market position is regional, leveraging local government support and cultural heritage to attract families and tourists. The business model centers on seasonal ticket sales and visitor engagement through interactive experiences. Key services include the treasure hunt game, guided tours, and tourist information. The company appears small in size with no subsidiaries or parent companies indicated. The partnership ecosystem includes local government and social media platforms for promotion. Growth potential lies in expanding visitor engagement and improving digital presence. The absence of privacy and security policies suggests an opportunity to enhance trust and compliance.

Security posture

The website demonstrates a basic security maturity level. HTTPS is assumed but not explicitly confirmed in the data. No security headers such as Content-Security-Policy or X-Frame-Options were detected, and the use of a deprecated map API library introduces potential vulnerabilities. There is no evidence of incident response readiness or vulnerability disclosure mechanisms. Privacy compliance is weak due to missing privacy and cookie policies. The site does not appear to collect extensive user data or use tracking analytics, which reduces exposure but also limits user insights. Overall, the security posture is functional but requires improvements to meet modern standards and regulatory requirements.

Recommendations

  1. Update the Mapy.cz JavaScript API to the latest supported version to mitigate risks from deprecated libraries.
  2. Implement comprehensive privacy and cookie policies to improve GDPR compliance and user trust.
  3. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  4. Establish a vulnerability disclosure policy and incident response contact to improve security transparency and readiness.
  5. Enhance mobile optimization and accessibility features to improve user experience and broaden audience reach.

Contact details published on the site

Addresses
Legal name
Dvořák Systems, s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Dvořák Systems, s.r.o.
Description
The website promotes a seasonal interactive game for children and parents held at the Zvířetice castle ruins near Bakov nad Jizerou, organized by TIC Zvířetice. It features a historical and educational treasure hunt experience themed around the story of Countess Eleonora and her castle's secret treasure.
Key services
Interactive treasure hunt game, Tourist information center services, Guided tours and educational activities
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, jQuery 3.2.1, Mapy.cz API
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
55/100
Good practices seen
  • Use of HTTPS (assumed from URL)
  • 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
moderate

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. No privacy, cookie, or terms of service policies found, indicating compliance gaps.
  3. Contact information is clearly presented but no email addresses found.
  4. Use of deprecated third-party map API is a technical risk.
  5. No analytics or tracking scripts detected, indicating minimal user tracking.
  6. Content is family-friendly and focused on local cultural tourism.
  7. No security headers or advanced security policies detected in provided data.
Technical notes

Notes

The website uses a straightforward technology stack with HTML5, CSS3, jQuery 3.2.1, and Mapy.cz API for map functionality. The presence of deprecated Mapy.cz SDK indicates technical debt and potential security risks. Performance is moderate with some mobile responsiveness but could be improved. SEO is basic with minimal meta tags and no structured data such as JSON-LD or Open Graph tags detected. Accessibility features are limited. The site does not appear to use a CMS or advanced frameworks, suggesting a custom or lightweight implementation. Hosting provider details are not available from the data. Overall, the technical infrastructure is adequate for the site's purpose but would benefit from modernization and optimization.
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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