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Security report for supss.cz

Střední uměleckoprůmyslová škola sklářská · Education · Czech Republic

Medium risk. 6 critical or high findings in GDPR outside view and Security headers.

Security score

72/100

Risk levelMedium

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

Střední uměleckoprůmyslová škola sklářská is a specialized secondary educational institution located in Železný Brod, Czech Republic, focusing on glass design, product design, applied chemistry, and glass technology. The school serves students and the local community by providing specialized education and hosting public exhibitions and events. The website reflects a professional and consistent brand image with clear navigation and relevant content tailored to prospective students and stakeholders. Technically, the website is built on the Public4u CMS platform and utilizes common web technologies such as jQuery, jQuery UI, and Google Tag Manager for analytics and tracking. The site is mobile-optimized with moderate performance and basic accessibility features. Security-wise, HTTPS is enforced, and cookie consent mechanisms are implemented, but there is room for improvement in security headers and explicit security policies. The security posture is moderate with no visible vulnerabilities or exposed sensitive data. Privacy compliance is good, with GDPR and cookie policies clearly presented. However, the absence of WHOIS data for the domain raises concerns about domain registration legitimacy, which should be further investigated. Overall, the website is trustworthy and professional but would benefit from enhanced security practices and transparency regarding domain registration.

Scanned

This is an earlier scan of supss.cz. View the latest report

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

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

      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 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 supss.cz

This scan found 18 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
95
Security headers
40
Email security
85
DNS health
85
Network security
100
GDPR outside view
25
Average
72

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 supss.cz, from OffSeq Breach.

Total records
30
Employees
0
Customers
2
Third parties
28
Weak passwords
7%

2 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 supss.cz.

Select it in the checkout above.

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

The school occupies a niche market in specialized secondary education focused on glass and design arts, serving a medium-sized institution in the Czech Republic. Its competitive advantage lies in its unique curriculum and regional recognition, including awards and public exhibitions. The business model is education-centric, targeting students interested in artistic and technical glass disciplines. Revenue streams likely include public funding and tuition. The partnership with Liberecký kraj and presence on multiple social media platforms indicate a well-established local ecosystem. Growth indicators include active event promotion and digital presence. Strategic observations suggest maintaining strong community ties and expanding digital engagement to enhance recruitment and reputation.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enforced and cookie consent implemented, aligning with GDPR requirements. However, the lack of visible security headers such as Content-Security-Policy and X-Frame-Options indicates potential gaps. No incident response or security policy documentation is found, which may impact readiness for security events. The use of third-party scripts like Google Tag Manager introduces moderate tracking but no apparent vulnerabilities. The absence of a security.txt file or vulnerability disclosure policy limits transparency. Overall, the security posture is adequate for an educational institution but could be strengthened by adopting best practices and formalizing security policies.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish clear security and incident response policies on the website to improve transparency and preparedness.
  3. Conduct regular audits of third-party scripts and dependencies to identify and mitigate vulnerabilities.
  4. Enhance accessibility features to meet recognized standards and improve user experience for all visitors.
  5. Investigate and resolve the absence of WHOIS data to ensure domain registration legitimacy and improve trust.

Contact details published on the site

Addresses
Legal name
Střední uměleckoprůmyslová škola sklářská
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Střední uměleckoprůmyslová škola sklářská
Description
Střední uměleckoprůmyslová škola sklářská, a secondary specialized art and glass industry school located in Železný Brod, Czech Republic.
Key services
Secondary education in glass design, Product design education, Applied chemistry education, Glass technology education, Public exhibitions and events, Student support services
Content quality
good
Branding
consistent

Technology

Stack
jQuery, jQuery UI, Google Tag Manager, Swiper.js
Frameworks
Public4u CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professionally presented and relevant to a specialized secondary school.
  3. Multiple social media and partner links enhance trust.
  4. Cookie consent and GDPR policy are implemented.
  5. WHOIS data is missing, which is a concern for domain legitimacy verification.
  6. No explicit security headers detected in provided data; potential area for improvement.
  7. Use of Google Tag Manager indicates moderate user tracking.
  8. No terms of service page detected.
  9. No explicit security or incident response policies found on the site.
Technical notes

Notes

The website uses a legacy but stable technology stack centered around jQuery and Public4u CMS, which supports the site's content management needs. Google Tag Manager is used for analytics, indicating moderate digital maturity. The site is mobile-optimized and has a clear navigation structure, contributing to good user experience. Performance is moderate, with potential improvements in loading speed and modernizing the tech stack to newer frameworks. The absence of advanced security headers and limited accessibility features suggest technical debt and opportunities for modernization. Hosting provider details are not evident, which could be clarified for better infrastructure assessment.
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. 72/100Medium26 findingsView report
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