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Security report for proskoly.cz

Databox 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

69/100

Risk levelMedium

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

Proskoly.cz is an established Czech educational portal operated by Databox s.r.o., providing a comprehensive range of cognitive ability tests, questionnaires, and practice exercises for students from preschool through secondary school. The platform targets students, teachers, and parents, offering tools to support learning in subjects such as languages, mathematics, and informatics. With over 19 years of market presence, the site enjoys a stable position supported by collaborations with schools and adherence to national educational standards. Technically, the website employs modern frontend technologies including Bootstrap, jQuery, and Google Tag Manager, ensuring responsive design and good user experience. Security posture is solid with HTTPS enforced and cookie consent mechanisms in place, although explicit security policies and vulnerability disclosure channels are not publicly documented. Overall, the site demonstrates high legitimacy and trustworthiness, supported by consistent WHOIS data and transparent contact information.

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

  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 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 proskoly.cz

This scan found 20 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

€25per month

  • 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
72
Security headers
55
Email security
85
DNS health
75
Network security
100
GDPR outside view
25
Average
69

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 business model revolves around licensing access to educational tests and questionnaires, targeting Czech educational institutions and families. The company leverages its long-standing market presence and partnerships with schools to maintain a competitive advantage. Revenue streams likely include license fees and subscriptions. The platform's content is aligned with the Czech Ministry of Education's framework, enhancing its credibility and adoption. The company operates as a small-sized entity focused on education technology within the Czech Republic. No subsidiaries or related domains were identified. The presence of user testimonials and official logos further strengthens trust and market positioning.

Security posture

The website exhibits a mature security posture with mandatory HTTPS, cookie consent management compliant with GDPR, and no visible exposure of sensitive data. However, the absence of explicit security policies, incident response contacts, and vulnerability disclosure mechanisms represents gaps in comprehensive security governance. The use of third-party scripts like Google Tag Manager is managed with consent but requires ongoing monitoring for vulnerabilities. Security headers are not explicitly detected in the provided data, suggesting room for improvement. Overall, the risk is moderate with no critical vulnerabilities identified but opportunities exist to enhance transparency and incident readiness.

Recommendations

  1. Implement and enforce security headers such as Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, and X-XSS-Protection to strengthen defense-in-depth.
  2. Publish a dedicated security policy page including incident response procedures and contact channels to improve transparency and trust.
  3. Establish a vulnerability disclosure program, potentially via a security.txt file, to facilitate responsible reporting of security issues.
  4. Regularly audit and update third-party libraries and scripts to mitigate risks from external dependencies.
  5. Enhance accessibility features and conduct periodic security training for staff to foster a security-aware culture.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Databox s.r.o.
Description
Portál Proškoly.cz nabízí školám ucelenou řadu testů rozumových schopností (logika, paměť, prostorová představivost, vnímání, koncentrace), unikátní dotazníky Volby povolání, Klima třídy a Klima školy. Pro každodenní přípravu do školy nabízí cvičení z českého i cizích jazyků. Portál je dobrým pomocníkem pro žáky, jejich učitele i rodiče.
Key services
testy rozumových schopností, dotazníky volby povolání, klima třídy a školy, procvičování jazyků a dalších předmětů
Content quality
excellent
Branding
consistent

Technology

Stack
Bootstrap 5.3.0, jQuery 3.7.0, Google Fonts (Inter), FontAwesome, Google Tag Manager, Nette Forms, Custom JS (Naja.min.js, proskoly.js)
Frameworks
Nette (implied by netteForms.js)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with granular options
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager with consent management

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Google Analytics (via Google Tag Manager)
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is educational, targeted at Czech schools, students, teachers, and parents.
  3. Strong compliance with GDPR and cookie consent requirements.
  4. Use of modern frontend technologies and responsive design.
  5. No explicit security policy or incident response info publicly available.
  6. WHOIS data matches company info and domain age supports business claims.
  7. No suspicious or malicious indicators found.
Technical notes

Notes

The website is built on a modern technology stack featuring Bootstrap 5.3, jQuery 3.7, and Google Fonts, ensuring responsive and visually consistent design. The use of Nette framework components is implied by the presence of netteForms.js. Performance is moderate with asynchronous loading of analytics scripts and deferred JavaScript. SEO is supported by appropriate meta tags and structured navigation. The site lacks a known CMS, suggesting a custom or proprietary solution. Hosting details are not disclosed. Technical debt appears low, but the absence of some security headers and explicit CMS may indicate areas for modernization. Overall, the technical infrastructure supports the business needs effectively with room for incremental improvements.
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. 69/100Medium29 findingsView report
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