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Security report for ehd.cz

as4u.cz, s.r.o. · Government · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

63/100

Risk levelMedium

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

The website www.ehd.cz serves as the official platform for the European Heritage Days (Dny evropského dědictví) in the Czech Republic. It provides event listings, heritage site registrations, and promotes a mobile application to facilitate user engagement. The site targets a general audience interested in cultural heritage and related events, positioning itself as a niche cultural event promoter within the government or non-profit sector. The business appears to be operated by as4u.cz, s.r.o., a small Czech company specializing in digital solutions. Technically, the website employs a CMS named Public4u and uses common JavaScript libraries such as jQuery and Leaflet.js for interactive maps. The site is moderately optimized for mobile devices and offers a good user experience with clear navigation and relevant content. However, there is room for improvement in accessibility and SEO optimization. From a security perspective, the site lacks visible security headers and privacy compliance mechanisms such as cookie consent banners or detailed privacy policies. The absence of WHOIS data for the domain reduces trustworthiness, although the website content and branding appear professional and legitimate. No WAF or blocking mechanisms were detected, and the site is fully accessible. Overall, the website is functional and serves its cultural informational purpose well but should enhance its security posture and privacy compliance to improve trust and meet regulatory requirements.

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

    • 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 ehd.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.

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
62
Security headers
40
Email security
65
DNS health
85
Network security
100
GDPR outside view
25
Average
63

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention ehd.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for ehd.cz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The platform operates in the cultural heritage sector, focusing on promoting European Heritage Days in the Czech Republic. Its competitive advantage lies in its official status and integration of interactive tools like maps and mobile apps. Revenue streams are likely limited or based on government or cultural grants rather than commercial sales. The target customers are cultural enthusiasts, tourists, and heritage site managers. The company as4u.cz, s.r.o. appears to be a small digital service provider supporting this initiative. The partnership ecosystem is not explicitly detailed, but the site links to nic.cz, the Czech domain registry, indicating official domain registration. Growth indicators are not visible, but the presence of a mobile app suggests digital engagement efforts.

Security posture

The website's security maturity is basic. It uses HTTPS (implied by the URL), but no security headers such as Content Security Policy, HSTS, or X-Frame-Options were detected in the provided content. There is no evidence of exposed sensitive data or vulnerable libraries, but the lack of security best practices and privacy compliance mechanisms is a concern. No incident response or vulnerability disclosure information is available. The absence of a security.txt file and contact channels for security incidents limits the site's readiness for handling security issues. Overall, the security posture is adequate for an informational site but requires improvements to align with best practices and regulatory compliance.

Recommendations

  1. Implement comprehensive privacy and cookie policies with clear GDPR compliance statements.
  2. Add security headers including Content Security Policy, HSTS, and X-Frame-Options to enhance protection.
  3. Publish a security.txt file and provide clear incident response contact information.
  4. Ensure WHOIS data is properly registered and publicly available to improve domain trustworthiness.
  5. Enhance accessibility features and SEO optimization to improve user experience and search visibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
as4u.cz, s.r.o.
Description
EHD - Dny evropského dědictví EHD
Key services
Event listings, Heritage site registration, Mobile application for event access
Content quality
good
Branding
consistent

Technology

Stack
jQuery, jQuery UI, Leaflet.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
40/100

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 detected.
  2. WHOIS data is missing, which is unusual and reduces domain trust.
  3. Website uses Czech language and targets Czech cultural heritage audience.
  4. No explicit privacy or cookie policies found, indicating compliance gaps.
  5. Site uses common JS libraries and a CMS named Public4u.
  6. Contact email is present in meta tags but no explicit contact page found in provided content.
  7. No social media or phone contacts explicitly found in the truncated content.
  8. Site includes an interactive map of Czech regions for event filtering.
  9. Mobile app is promoted, indicating some digital maturity.
  10. No security headers or advanced security measures detected in the content.
Technical notes

Notes

The website is built on the Public4u CMS platform and uses JavaScript libraries such as jQuery, jQuery UI, and Leaflet.js for interactive maps. The site includes responsive design elements and a mobile app promotion, indicating moderate digital maturity. Performance appears moderate, with room for optimization. The HTML content is well-structured, but accessibility and SEO could be improved. No advanced frameworks or hosting provider details were identified. The site lacks modern security configurations and privacy compliance tools, which are technical risks that could impact user trust and regulatory adherence.
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. 67/100Medium26 findingsView report
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