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Is zsluka.net a Scam? Security Check Results - Základní škola a Mateřská škola Luka nad Jihlavou, příspěvková organizace

zsluka.net Security Report Summary

zsluka.net received a security score of 44 out of 100 in Guard's comprehensive security analysis, classified as "Elevated Risk". This report covers Základní škola a Mateřská škola Luka nad Jihlavou, příspěvková organizace's website security posture. Základní škola a Mateřská škola Luka nad Jihlavou, příspěvková organizace operates in the Education industry in Czech Republic.

Základní škola a Mateřská škola Luka nad Jihlavou is a small public educational institution serving primary and nursery education needs for Luka nad Jihlavou and surrounding villages in the Czech Republic. The website provides comprehensive information about the school, its classes, extracurricular activities, and administrative contacts, targeting students, parents, and the local community. The institution positions itself as a key local educational provider with modern facilities and a supportive environment. Technically, the website is built on a custom CMS platform (IPO Redakční systém) using jQuery and jQuery UI libraries, with integration of Google reCAPTCHA and Matomo analytics for user tracking. The site is mobile responsive and implements cookie consent mechanisms, reflecting a moderate level of digital maturity. Performance is moderate, with good SEO and basic accessibility features. From a security perspective, the site enforces HTTPS and uses reCAPTCHA to protect forms, but lacks explicit security headers and published security policies or incident response contacts. The absence of WHOIS registration data is a notable anomaly, potentially indicating domain registration issues or privacy protection, which slightly reduces trustworthiness. Overall, the security posture is adequate but could be improved with better header configurations and transparency. The overall risk assessment is moderate with no critical vulnerabilities detected. Strategic recommendations include enhancing security headers, publishing security and incident response policies, improving accessibility compliance, and clarifying domain registration status to strengthen trust and compliance.

The security scan identified 31 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: jQuery 3.0.0, jQuery UI 1.8.20, Google reCAPTCHA, Matomo Analytics, PHP backend (implied by .php URLs), custom CMS (IPO Redakční systém).

About this security scan

Guard performs automated security assessments of websites by analyzing SSL/TLS certificates, HTTP security headers, DNS configuration, email authentication protocols (SPF, DKIM, DMARC), GDPR compliance indicators, NIS2 directive compliance, network exposure, and AI-powered business intelligence. Each report provides domain-specific findings, risk scores, and actionable recommendations.

Z

Is zsluka.net Safe? Security Analysis for Základní škola a Mateřská škola Luka nad Jihlavou, příspěvková organizace

https://zsluka.net

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EducationCzech Republicsmall
jQuery 3.0.0jQuery UI 1.8.20Google reCAPTCHAMatomo AnalyticsPHP backend (implied by .php URLs)+1 more
Analyzed 7/16/2025Completed 12:29:09 PM8mo ago
44
Security Score
HIGH RISK

Below Education avg (55)

10,000+

Domains scanned

500+

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Domainzsluka.net
Access tierFull report or marketing add-on

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SEQ SIA

Lastadijas 12 k-3, Riga, Latvia, LV-1050

Reg. No. 40203410806 • VAT LV40203410806

Support: guard@offseq.com+371 2256 5353

AI Summary

Základní škola a Mateřská škola Luka nad Jihlavou is a small public educational institution serving primary and nursery education needs for Luka nad Jihlavou and surrounding villages in the Czech Republic. The website provides comprehensive information about the school, its classes, extracurricular activities, and administrative contacts, targeting students, parents, and the local community. The institution positions itself as a key local educational provider with modern facilities and a supportive environment. Technically, the website is built on a custom CMS platform (IPO Redakční systém) using jQuery and jQuery UI libraries, with integration of Google reCAPTCHA and Matomo analytics for user tracking. The site is mobile responsive and implements cookie consent mechanisms, reflecting a moderate level of digital maturity. Performance is moderate, with good SEO and basic accessibility features. From a security perspective, the site enforces HTTPS and uses reCAPTCHA to protect forms, but lacks explicit security headers and published security policies or incident response contacts. The absence of WHOIS registration data is a notable anomaly, potentially indicating domain registration issues or privacy protection, which slightly reduces trustworthiness. Overall, the security posture is adequate but could be improved with better header configurations and transparency. The overall risk assessment is moderate with no critical vulnerabilities detected. Strategic recommendations include enhancing security headers, publishing security and incident response policies, improving accessibility compliance, and clarifying domain registration status to strengthen trust and compliance.

Detected Technologies

jQuery 3.0.0jQuery UI 1.8.20Google reCAPTCHAMatomo AnalyticsPHP backend (implied by .php URLs)custom CMS (IPO Redakční systém)

14 urgent findings need attention

1 critical · 13 high

  • + 6 more findings in the full report below
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Security drift alerts

Risk score drops, new high-severity issues, and header hardening gaps

Compliance watch

GDPR / NIS2 posture changes with governance evidence snapshots

Infrastructure surface

Unexpected open services, SSL expiry, DNS & email authentication changes

Content & tracker intelligence

Marketing tech shifts, analytics drift, and AI recommendation updates

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Security Headers

7 findings

30/100

GDPR Compliance

3 findings

50/100

NIS2 Compliance

9 findings

2/100

Email Security

3 findings

45/100

🧠AI Business Intelligence

Technology stack, business insights, and market analysis powered by AI.

Business Intelligence

Market & Strategic Analysis

The school operates as a public educational entity focused on delivering primary and nursery education services to a defined local community. Its business model is non-commercial, funded likely by government or local authorities. The website supports communication with parents and students, providing updates, schedules, and administrative documents. The institution's competitive advantage lies in its established local presence and comprehensive educational offerings. There is no indication of revenue streams beyond public funding. The partnership ecosystem includes local government and service providers like Antee s.r.o. for web development. Growth indicators are limited due to the nature of the institution, but the website reflects active engagement with its audience through news and updates.

Extracted Contact Information

Marketing Intelligence Data

Company Registration

Legal Name:

Základní škola a Mateřská škola Luka nad Jihlavou, příspěvková organizace

Registration Number:

75023024

Security Posture Analysis

Comprehensive Security Assessment

The website demonstrates a basic to moderate security maturity level. HTTPS is enforced, and Google reCAPTCHA is used to mitigate automated abuse. Matomo analytics is configured with cookie disabling by default, indicating privacy awareness. However, the absence of security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces defense-in-depth. No published security policies or incident response contacts limit transparency and preparedness perception. No vulnerabilities or exposed sensitive data were detected in the analysis. Compliance with GDPR is suggested by cookie consent and privacy statements but lacks explicit data protection officer contact or detailed policies. Overall, the security posture is sufficient for a public educational website but could benefit from enhancements to align with best practices.

Strategic Recommendations

Priority Actions for Security Improvement

1

Implement and enforce security headers including CSP, HSTS, and X-Frame-Options to improve protection against common web attacks.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

Základní škola a Mateřská škola Luka nad Jihlavou, příspěvková organizace

Description:

Základní škola Luka nad Jihlavou je úplná škola s 9 postupnými ročníky, spádovou školou pro okolní vesnice. Poskytuje vzdělání pro 1. i 2. stupeň základní školy a mateřskou školu s moderním vybavením a zázemím.

Key Services:
primary educationnursery educationschool canteen servicesafter-school careextracurricular activities
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
jQuery 3.0.0jQuery UI 1.8.20Google reCAPTCHAMatomo AnalyticsPHP backend (implied by .php URLs)custom CMS (IPO Redakční systém)
Performance:

moderate

Mobile:

good

Accessibility:

basic

SEO:

good

Security Assessment

Security Score:
80/100
Best Practices:
  • HTTPS enforced
  • Cookie consent implemented
  • Google reCAPTCHA for forms

Analytics & Tracking

Services:
Matomo
Tracking Level:moderate
Privacy Compliance:good

Advertising & Marketing

Tracking Pixels:
Matomo
Transparency Level:basic

Website Quality Assessment

Design Quality:good
User Experience:good
Content Relevance:good
Navigation Clarity:good
Professionalism:good
Trustworthiness:high

Key Observations

1

Website is fully accessible with no blocking or WAF challenges.

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🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

30/100
Score

Weak Strict-Transport-Security configuration

LOW

Current value: "max-age=2592000"

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks

Missing X-Content-Type-Options header

MEDIUM

Prevents MIME type sniffing

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

Missing Referrer-Policy header

LOW

Controls referrer information sent with requests

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

👤GDPR Compliance

Privacy and data protection assessment under GDPR regulations.

GDPR Compliance

Privacy and data protection assessment

50/100
Score

No Privacy Policy found

HIGH

GDPR requires a clear and accessible privacy policy

No Cookie Consent Banner found

HIGH

GDPR requires explicit consent for non-essential cookies

Third-party services without privacy policy

HIGH

Detected services: Google APIs

GDPR Compliance Analysis

Privacy Policy0% confidence
Cookie Policy85% confidence
Contact Information Found90% confidence
emailphone

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

2/100
Score

No information security framework found

HIGH

NIS2 requires documented cybersecurity and information security measures

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure

No security policy documentation found

HIGH

NIS2 requires documented cybersecurity governance and risk management

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans

No business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity

No security contact information

HIGH

NIS2 requires clear incident reporting channels

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts

Critical sector without clear security compliance

HIGH

Detected sectors: transport, digital

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📧Email Security

SPF, DKIM, and DMARC validation and email security assessment.

Email Security

SPF, DKIM, and DMARC validation

45/100
Score

No SPF record found

HIGH

SPF helps prevent email spoofing

No DMARC record found

HIGH

DMARC provides email authentication and reporting

No DKIM record found

MEDIUM

DKIM adds cryptographic signatures to emails

SPF
Sender Policy Framework
DKIM
DomainKeys Identified Mail
DMARC
Domain-based Message Authentication
MX Records
Mail Exchange Records
BIMI
Brand Indicators
MTA-STS
Mail Transfer Agent Security
TLS-RPT
TLS Reporting
DNSSEC
DNS Security
DMARC Details
Policy:none
MTA-STS Details

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

72/100
Score

Weak Protocols Supported

HIGH

Server supports weak protocols: TLSv1.1

OCSP Stapling Not Enabled

LOW

OCSP stapling improves performance and privacy

Certificate Transparency Not Implemented

LOW

Certificate is not logged in Certificate Transparency logs

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 47 days

Partial SSL/TLS Assessment

LOW

Completed 3 of 4 security checks due to time constraints

Protocol Support

TLSv1.3TLSv1.2TLSv1.1

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

80/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found

Domain Delete Lock Not Enabled

LOW

Domain can be deleted without additional verification

Domain Registration Details

Domain Age
19 years(mature)
Expiry Risk
none(148 days)
Protection Level
moderateDNSSEC OFF

DNS Records

A Records:217.11.227.76
AAAA Records:2001:1528:279:0:217:11:227:76
Name Servers:
ns.forpsi.cz
ns.forpsi.net
ns.forpsi.us
MX Records:
10: alt3.aspmx.l.google.com
10: alt4.aspmx.l.google.com
1: aspmx.l.google.com
5: alt1.aspmx.l.google.com
5: alt2.aspmx.l.google.com

DNSSEC Status

DNSSEC Not Enabled

Network Security

Port scanning and network exposure analysis.

Network Security

Port scanning and network exposure analysis

0/100
Score

Critical Service Exposed: MySQL

CRITICAL

Port 3306 (MySQL) is publicly accessible - MySQL - Database server

How does zsluka.net compare?

zsluka.net scores below average. Browse similar domains to see how competitors handle security.

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

The website uses a custom CMS platform with jQuery 3.0.0 and jQuery UI 1.8.20, which are somewhat outdated but functional. Google reCAPTCHA integration helps protect forms from abuse. Matomo analytics is used for privacy-respecting user tracking. The site is mobile responsive and includes SEO-friendly meta tags and structured navigation. Performance is moderate, with some opportunities for optimization. The hosting provider is not explicitly identified. The site uses HTTPS with valid SSL configuration. There is no evidence of modern JavaScript frameworks or advanced backend technologies. Overall, the technical infrastructure is stable but could benefit from modernization and improved security configurations.
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Marketing Intelligence

Contact emails, phone numbers & warm leads

49.90 €one-time • Incl. 21% VAT

Plan Comparison

FeaturePDF ReportMarketing+
Full security analysis
Professional PDF export
Email delivery
Lifetime access + unlock code
Contact emails & phones
Marketing outreach data

Already purchased?

Order summary

Domainzsluka.net
Access tierFull report or marketing add-on

Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.

VisaMastercardApple PayGoogle Pay

Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.

SEQ SIA

Lastadijas 12 k-3, Riga, Latvia, LV-1050

Reg. No. 40203410806 • VAT LV40203410806

Support: guard@offseq.com+371 2256 5353

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