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Security report for skolaonline.cz

BAKALÁŘI software s.r.o. · Education · Czech Republic

Medium risk. 6 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

70/100

Risk levelMedium

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

Škola Online is a well-established Czech SaaS provider specializing in school management software, serving over 1760 schools and 1.3 million users. The platform offers both web and mobile applications designed to streamline school administration and communication among directors, teachers, students, and parents. The company positions itself as a reliable and secure partner with a strong focus on GDPR compliance and data protection. Technically, the website is built on WordPress with modern frameworks such as UIkit and integrates essential plugins for forms, cookie consent, and social sharing. The infrastructure supports secure HTTPS connections, Google reCAPTCHA for bot protection, and uses Google Tag Manager for analytics and marketing. Mobile optimization and accessibility are well implemented, providing a positive user experience across devices. Security posture is robust with encrypted communications, data backups, and continuous monitoring, although explicit security headers could be improved. Privacy compliance is evident with clear policies and consent mechanisms. The absence of WHOIS data is likely due to privacy protection, which is justified for this business type. Overall, the website demonstrates high professionalism, trustworthiness, and operational maturity.

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

6 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

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, LinkedIn, YouTube

      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 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"

Need hands-on remediation? Email guard@offseq.com

Keep watching skolaonline.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

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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
77
Security headers
30
Email security
85
DNS health
85
Network security
100
GDPR outside view
40
Average
70

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 skolaonline.cz, from OffSeq Breach.

Total records
44,251
Employees
0
Customers
44,251
Third parties
0
Weak passwords
14%

41 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for skolaonline.cz.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

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

Business context

Business profile

Škola Online operates in the education sector, targeting schools and educational institutions in the Czech Republic. Its business model is SaaS, providing modular software solutions for school agenda management. The company benefits from a large user base and extensive market penetration, indicating strong competitive positioning. Key revenue streams likely include subscriptions and training services. The company maintains active customer support and engagement through multiple channels and social media. Strategic partnerships, such as with BAKALÁŘI software s.r.o., enhance its market presence. Growth indicators include frequent updates, new features, and a comprehensive module offering.

Security posture

The website exhibits a mature security posture with HTTPS enforced, encrypted email addresses, and use of Google reCAPTCHA to protect forms. The hosting environment is described as secure with physical security and backup power. However, some standard security headers are not explicitly present, which could be improved to mitigate clickjacking and MIME sniffing risks. No public vulnerability disclosure or incident response contacts are found, representing a compliance gap. Data protection practices align with GDPR requirements, and cookie consent is implemented. Overall, the security measures are strong but could benefit from enhanced transparency and header configurations.

Recommendations

  1. Implement explicit security headers such as Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy to strengthen browser security.
  2. Publish a public vulnerability disclosure policy and provide dedicated security contact information to improve incident response readiness.
  3. Regularly audit and update third-party plugins and dependencies to minimize vulnerabilities.
  4. Enhance DNS security by enabling DNSSEC if not already active.
  5. Maintain transparency on data retention policies and update privacy notices accordingly.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
BAKALÁŘI software s.r.o.
Description
Škola Online je stabilní a vždy dostupná webová aplikace pro každodenní řízení vaší školy.
Key services
Webová aplikace pro školní správu, Mobilní aplikace, Moduly pro školní agendu, Zákaznická podpora, Školení
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, PHP, jQuery, Google Tag Manager, Google reCAPTCHA, UIkit framework, Contact Form 7 plugin, Email Encoder Bundle plugin, Sassy Social Share plugin, Innoit Cookie Consent plugin
Frameworks
UIkit, WordPress
Platforms
Web, Mobile (Android and iOS apps)
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA for forms
  • Encrypted email addresses via Email Encoder Bundle
  • Cookie consent mechanism implemented
  • Regular monitoring and backup described on security page

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Google Analytics (via Google Tag Manager)
Marketing tools
SmartEmailing newsletter
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking detected
  2. Professional and consistent branding with clear business focus
  3. Strong emphasis on security and GDPR compliance
  4. Multiple contact methods and support options available
  5. Use of modern web technologies and CMS
  6. No WHOIS data available, likely due to privacy protection
  7. No suspicious or malicious content detected
Technical notes

Notes

The website uses WordPress CMS with a modern UIkit framework and several well-known plugins for forms, cookie consent, and social sharing. It integrates Google Tag Manager and Google reCAPTCHA for analytics and security. The site is mobile-optimized and accessible, with good SEO metadata and structured data (JSON-LD). Performance is moderate, with room for optimization. Hosting details are not explicit, but the site uses HTTPS with a valid SSL certificate. The technical stack is standard for a professional SaaS provider, supporting scalability and maintainability.
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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