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Security report for eduzio.cz

NOVÁ ŠKOLA, s.r.o. · Education · Czech Republic

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

Security score

63/100

Risk levelMedium

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

Eduzio.cz is an educational platform specializing in online preparatory tests for secondary schools and gymnasiums in the Czech Republic, aligned with the CERMAT standard. The platform collaborates with the established publisher NOVÁ ŠKOLA, s.r.o., which has a history dating back to 1997. Eduzio offers targeted test preparation in Czech language and mathematics, providing immediate feedback to students to enhance learning effectiveness. The website is professionally designed, mobile-optimized, and provides clear navigation and relevant educational content, including a blog and FAQ sections.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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

  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 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"

    • 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 eduzio.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.

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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
75
Security headers
15
Email security
70
DNS health
75
Network security
100
GDPR outside view
40
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

Technical appendix

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

Business context

Business profile

Eduzio operates in the niche market of educational test preparation, leveraging partnerships with reputable publishers and official testing authorities like CERMAT. Its business model focuses on providing accessible online tests tailored to Czech school curricula, targeting students preparing for entrance exams. The platform's integration of immediate result feedback and structured content positions it competitively within the Czech education sector. While direct contact information is limited on the main site, the presence of privacy and cookie policies indicates compliance awareness. The partnership ecosystem includes the publisher NOVÁ ŠKOLA and CERMAT, enhancing credibility.

Security posture

The website enforces HTTPS and uses secure login and registration forms with CSRF protection. It implements cookie consent mechanisms and integrates tracking tools such as Google Analytics and Facebook Pixel responsibly. However, the absence of explicit security headers and a published security policy or incident response contact reduces the overall security maturity. No vulnerabilities or exposed sensitive data were detected in the analysis. The lack of WHOIS transparency is a notable concern, impacting domain trustworthiness. Overall, the security posture is good but could be improved by adding security headers and incident response information.

Recommendations

  1. Implement and publish security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish a clear security policy and provide incident response contact details to improve transparency and user trust.
  3. Add explicit contact information including company emails and phone numbers to facilitate user communication and support.
  4. Enhance WHOIS domain registration transparency to improve domain legitimacy and trust scores.
  5. Regularly review and update privacy and cookie policies to maintain GDPR compliance and user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
NOVÁ ŠKOLA, s.r.o.
Description
Eduzio.cz nabízí online přípravné testy pro střední školy a gymnázia ve spolupráci s nakladatelstvím NOVÁ ŠKOLA. Testy odpovídají úrovni CERMAT a poskytují okamžitou zpětnou vazbu pro efektivní přípravu na přijímací zkoušky.
Key services
přípravné testy na přijímací zkoušky z českého jazyka a matematiky, online testování s okamžitou zpětnou vazbou, vzdělávací obsah a blogové články
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Tiny Slider (tns), MicroModal, Google Analytics, Service Worker (PWA), Facebook Pixel
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Secure login and registration forms with CSRF tokens
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Analytics, Facebook Pixel
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Facebook Pixel
Marketing tools
Facebook Pixel
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 in Czech language.
  2. Focus on educational test preparation for Czech secondary schools.
  3. No contact emails or phone numbers explicitly provided on main page.
  4. Privacy and cookie policies are present and GDPR compliant.
  5. No explicit security policy or incident response info found.
  6. WHOIS data unavailable, limiting domain trust assessment.
  7. Uses modern web technologies and tracking tools.
  8. No adult or questionable content detected.
Technical notes

Notes

The website uses modern web technologies including HTML5, CSS3, JavaScript, and libraries such as Tiny Slider and MicroModal for UI components. It integrates Google Analytics and Facebook Pixel for analytics and marketing. The site supports PWA features with a service worker registered, enhancing user experience on mobile devices. Performance is moderate with good mobile optimization and basic accessibility features. SEO is well addressed with proper meta tags and Open Graph data. No CMS or hosting provider information was detected. Overall, the technical infrastructure is solid with room for improvement in accessibility and security headers.
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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