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Security report for celmuz.cz

Městské muzeum v Čelákovicích, p. o. · Government · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

68/100

Risk levelMedium

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

Městské muzeum v Čelákovicích is a small, regionally significant public cultural institution founded in 1903, dedicated to preserving and presenting local history and culture. The museum offers exhibitions, public events, and services such as a tourist information center, space rental, and archaeological consulting. The website reflects a professional and consistent brand image with clear contact information and active social media presence. Technically, the site uses a custom CMS (Public4u) with common JavaScript libraries like jQuery and Swiper.js, providing a moderate performance and good mobile optimization. Security posture is basic, with HTTPS usage but lacking advanced security headers and explicit security policies. WHOIS data is unavailable, which limits domain trust assessment, but the website content and contact details support legitimacy. Overall, the site is safe, accessible, and suitable for a general audience.

Scanned

This is an earlier scan of celmuz.cz. View the latest report

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

7 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 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 celmuz.cz

This scan found 17 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
95
Security headers
40
Email security
65
DNS health
85
Network security
100
GDPR outside view
25
Average
68

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 museum operates in the government and non-profit sectors, targeting local visitors and cultural enthusiasts. Its business model focuses on public service and education rather than commercial revenue. The institution maintains partnerships with local schools and cultural organizations, as evidenced by collaborative exhibitions. The website's clear navigation and content relevance support user engagement. The absence of advertising and tracking tools indicates a privacy-conscious approach. Growth indicators include ongoing exhibitions and event calendars. The museum's digital presence is stable but could benefit from enhanced security and privacy transparency to strengthen trust and compliance.

Security posture

The website demonstrates a basic security maturity level with HTTPS enabled and no visible sensitive data exposure. However, it lacks important security headers such as Content Security Policy and HSTS, which are recommended to mitigate common web attacks. No vulnerability disclosures or incident response contacts are provided, indicating limited preparedness for security incidents. The use of outdated JavaScript libraries could pose risks if not regularly updated. GDPR compliance is partially addressed through a privacy policy and cookie consent mechanism, but more comprehensive data protection measures and transparency are advisable. Overall, the security posture is adequate for a small public institution but requires improvements to meet higher standards.

Recommendations

  1. Implement and enforce security headers including Content Security Policy, HSTS, and X-Frame-Options to enhance protection against web attacks.
  2. Publish a comprehensive privacy policy detailing GDPR compliance and data handling practices.
  3. Establish and publicize an incident response plan with dedicated contact channels for security issues.
  4. Regularly update all third-party libraries and CMS components to mitigate vulnerabilities.
  5. Improve accessibility features and conduct audits to ensure compliance with standards.

Contact details published on the site

Addresses
Legal name
Městské muzeum v Čelákovicích, p. o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Městské muzeum v Čelákovicích, p. o.
Description
Městské muzeum v Čelákovicích, založené přičiněním představitelů obce v roce 1903, je nejstarším muzeem na současném okrese Praha-východ. Jeho počáteční skrovné sbírky o několika desítkách historických předmětů, soustředěné původně do jedné
Key services
museum exhibitions, public events and exhibitions, tourist information center, space rental, wedding services, archaeological services for builders
Content quality
good
Branding
consistent

Technology

Stack
jQuery, jQuery UI, Public4u CMS, Swiper.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
70/100
Good practices seen
  • HTTPS usage (implied by https URLs)
  • No exposed sensitive data in HTML

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with rich content about the museum and its services.
  2. No WHOIS data available, which is unusual and reduces domain trust assessment.
  3. No explicit privacy or security policies beyond basic accessibility statement.
  4. No visible security headers or advanced security configurations detected.
  5. Website uses a custom CMS (Public4u) with common JS libraries.
  6. Contact information is clearly presented with official emails and phone numbers.
  7. Social media presence on Facebook and Instagram is active.
  8. No advertising or tracking scripts detected.
  9. Content is safe and suitable for general audiences.
Technical notes

Notes

The website is built on the Public4u CMS platform, utilizing jQuery, jQuery UI, and Swiper.js for interactive elements. The site is mobile-optimized with responsive design and includes basic SEO meta tags and Open Graph metadata for social sharing. Performance is moderate, with no major blocking scripts detected. However, the absence of modern frameworks or advanced optimization techniques suggests potential for modernization. The lack of visible hosting provider information limits infrastructure assessment. Overall, the technical implementation is stable but could benefit from modernization and enhanced security configurations.
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

Earlier scans of this domain

  1. 68/100Medium25 findingsView report
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