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Security report for eduzin.cz

Heroine s.r.o. · Media · Czech Republic

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

Security score

67/100

Risk levelMedium

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

Heroine.cz is a Czech online media platform specializing in education and societal topics, integrating the Eduzín magazine content to provide in-depth educational materials and commentary. The site targets Czech-speaking audiences interested in education policy, social issues, and culture, offering articles, podcasts, and newsletters. The business operates under Heroine s.r.o., a medium-sized media company with a professional online presence and e-commerce capabilities for magazine subscriptions. Technically, the website employs a modern Ruby on Rails-based infrastructure with Turbolinks, integrates multiple analytics and advertising services including Google Tag Manager, Microsoft Clarity, Gemius, and Caroda ads, and uses Cloudflare Turnstile for bot protection. The site is mobile-optimized with good SEO and basic accessibility features. Security posture is solid with HTTPS, CSRF protections, and bot mitigation, though it lacks some advanced security headers and publicly available incident response policies. Privacy compliance is strong, with clear GDPR-aligned privacy and cookie policies and consent mechanisms. However, no direct company contact emails or phone numbers are publicly listed, relying mainly on newsletter subscription forms for user interaction. Overall, the website is professional, content-rich, and trustworthy, though the absence of WHOIS data and direct contact details slightly reduce transparency. Strategic improvements in security headers, incident response disclosure, and contact information would enhance trust and compliance.

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

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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, Twitter, Cloudflare, Google Ads

      What to do: Document all third-party data sharing in your privacy policy

  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 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 eduzin.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.

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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
57
Security headers
60
Email security
85
DNS health
75
Network security
100
GDPR outside view
25
Average
67

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

Heroine.cz holds a niche position in the Czech media market focusing on education and social issues, leveraging the Eduzín brand to deepen content offerings. Its business model combines free online content with subscription and e-shop sales, targeting engaged readers and subscribers. The company benefits from a strong social media presence and partnerships within the Next Page Media group. Growth indicators include active content updates, multimedia formats, and community engagement via newsletters. Competitive advantages include specialized content depth and integration of educational policy discourse. The platform's ecosystem includes advertising partnerships and analytics integrations supporting monetization and audience insights.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, CSRF token usage, and bot protection via Cloudflare Turnstile. Multiple third-party scripts are used, which necessitates ongoing vulnerability management. The absence of advanced security headers like Content-Security-Policy and Strict-Transport-Security is a gap. No exposed sensitive data or known vulnerabilities were detected in the content. Privacy policies are comprehensive and GDPR compliant, but incident response and vulnerability disclosure mechanisms are not publicly documented. Overall, the security culture appears adequate but could benefit from formalized policies and enhanced header configurations.

Recommendations

  1. Implement additional HTTP security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to harden the site against common web attacks.
  2. Publish a clear incident response policy and contact channels for security issues to improve transparency and readiness.
  3. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
  4. Enhance accessibility features to meet higher standards and improve user experience for all visitors.
  5. Provide direct company contact information such as support emails or phone numbers to increase trust and user confidence.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Heroine s.r.o.
Description
Heroine.cz is a Czech web magazine focusing on education and societal topics, integrating Eduzín content to provide in-depth materials on educational policy and practice.
Key services
Online articles and commentary, Podcasts, Newsletter subscriptions, E-shop for magazine subscriptions
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Microsoft Clarity, Gemius analytics, Google Adsense, Caroda video ads, Cloudflare Turnstile captcha
Frameworks
Turbolinks
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • CSRF protection tokens in forms
  • Use of Cloudflare Turnstile captcha for bot protection

Analytics and tracking

Services
Google Analytics, Microsoft Clarity, Gemius, Ahrefs Analytics
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google Adsense, Caroda, Seznam SSP, Performax
Tracking pixels
Microsoft Clarity, Gemius, Google Analytics (via GTM), Ahrefs Analytics
Transparency
good

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 and no blocking detected.
  2. WHOIS data is unavailable, which is unusual and may indicate privacy protection or registration issues.
  3. Website uses multiple third-party analytics and advertising services.
  4. Privacy and cookie policies are present and GDPR compliant.
  5. No direct contact emails or phone numbers found; contact is via newsletter subscription form.
  6. Content is in Czech language and focused on education and social topics.
  7. Security posture is good but can be improved with additional headers and policies.
Technical notes

Notes

The website is built on a Ruby on Rails framework with Turbolinks for navigation speed. It integrates multiple analytics and advertising technologies including Google Tag Manager, Microsoft Clarity, Gemius, and Caroda video ads. The site uses Cloudflare Turnstile captcha for bot mitigation. Performance is moderate with good mobile optimization and SEO practices. The CMS appears custom or Rails-based, with no major technical debt visible in the HTML. Opportunities exist to improve accessibility and security header implementation. Hosting provider details are not explicit but likely involve cloud or CDN services given the use of Cloudflare and external ad networks.
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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