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Security report for gaozl.cz

Střední škola gastronomie a obchodu Zlín · Education · Czech Republic

High risk. 8 critical or high findings in GDPR outside view, SSL/TLS and 2 other checks.

Security score

38/100

Risk levelHigh

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

Střední škola gastronomie a obchodu Zlín is a well-established secondary educational institution located in the heart of Zlín, Czech Republic, founded in 1958. The school specializes in gastronomy, culinary arts, hospitality, and related fields, offering both vocational and maturita (high school graduation) programs. It maintains strong partnerships with local businesses and provides practical training opportunities, including catering events and specialized courses for students with special educational needs. The website reflects a professional and regionally respected educational entity with a clear focus on student engagement and practical skills development. Technically, the website employs a custom CMS with modern frontend technologies such as jQuery and Owl Carousel for interactive elements. It is served over HTTPS with a valid SSL certificate, includes a cookie consent mechanism compliant with GDPR, and demonstrates good mobile responsiveness and SEO practices. However, some security headers are missing, and no explicit security or incident response policies are published. From a security perspective, the site shows a solid baseline with HTTPS and cookie consent but lacks advanced security headers and formal incident response contacts. The absence of WHOIS data limits domain trust evaluation, though the website content and contact information support legitimacy. No vulnerabilities or malicious content were detected. Overall, the site is safe, professional, and suitable for its educational purpose. Strategically, the school should enhance its security posture by implementing recommended HTTP security headers, publishing clear security policies, and improving WHOIS transparency to strengthen trust. Continued focus on GDPR compliance and user privacy is evident and should be maintained.

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

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

  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  3. 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 gaozl.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

Email alerts on material changes and an exportable JSON history of every change.

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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
0
Security headers
20
Email security
70
DNS health
60
Network security
40
GDPR outside view
40
Average
38

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 school holds a strong regional position as a specialized secondary education provider in gastronomy and commerce, leveraging long-standing local partnerships with hospitality businesses and regional authorities. Its business model is public education funded and overseen by the Zlínský kraj (Zlín Region). Revenue streams likely include public funding and fees for specialized courses. The target audience includes prospective students, parents, and professionals seeking continuing education in gastronomy. The partnership ecosystem is extensive, including local restaurants, hotels, and educational institutions, enhancing practical training and employment opportunities. Growth indicators include active course offerings and community engagement via social media. The website content and structure support a transparent and accessible communication channel for stakeholders.

Security posture

The website demonstrates a foundational security posture with enforced HTTPS and a cookie consent mechanism aligned with GDPR requirements. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options suggests room for improvement in mitigating common web vulnerabilities. No explicit incident response or vulnerability disclosure information is provided, which could hinder rapid response to security incidents. The lack of WHOIS data reduces domain trust assessment capabilities. No third-party analytics or tracking scripts beyond jQuery and Owl Carousel were detected, minimizing privacy risks. Overall, the security maturity is moderate, suitable for an educational website but requiring enhancements to align with best practices and compliance frameworks.

Recommendations

  1. Implement comprehensive HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to reduce attack surface.
  2. Publish a formal security policy and incident response contact information to improve transparency and readiness.
  3. Investigate and resolve WHOIS data availability to enhance domain trust and legitimacy.
  4. Regularly audit and update third-party libraries to avoid vulnerabilities.
  5. Maintain and enhance GDPR compliance with clear privacy notices and data handling procedures.

Contact details published on the site

Addresses
Legal name
Střední škola gastronomie a obchodu Zlín
Registration number
00545121
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Střední škola gastronomie a obchodu Zlín
Description
Střední škola gastronomie a obchodu Zlín je vzdělávací instituce založená v roce 1958, sídlící v centru města Zlína. Škola nabízí výuční i maturitní obory v oblasti gastronomie, kulinářství, hostitelství a hotelnictví s praktickým odborným výcvikem a spoluprací s místními partnery.
Key services
střední odborné vzdělání v gastronomii a obchodu, výuční a maturitní obory, zájmové gastronomické kurzy, odborný výcvik a cateringové akce
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.5.1, Owl Carousel, FontAwesome, SVG icons
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with opt-in/out
  • No exposed sensitive data in HTML

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

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. No signs of WAF or blocking mechanisms.
  3. WHOIS data unavailable, limiting domain trust analysis.
  4. Site uses HTTPS with valid SSL.
  5. Cookie consent mechanism implemented.
  6. No explicit privacy or security certifications displayed.
  7. Contact information clearly presented with phone and email.
  8. Social media presence on Facebook, Instagram, YouTube.
  9. No visible security headers detected in provided data.
  10. No analytics or tracking scripts explicitly detected except jQuery and Owl Carousel.
Technical notes

Notes

The website uses a custom CMS platform with frontend technologies including jQuery 3.5.1 and Owl Carousel for interactive sliders. FontAwesome and SVG icons are used for UI elements. The site is served over HTTPS with a valid SSL certificate, ensuring encrypted communication. Performance is moderate with lazy loading images and responsive design for mobile devices. SEO is supported by meta tags, Open Graph, and Twitter card metadata. Accessibility is basic with skip links and labels but could be improved. No major technical debt or deprecated technologies detected. Hosting provider details are not disclosed. Overall, the technical infrastructure is stable and appropriate for the site's educational purpose.
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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