Is cloverbooks.cz Safe? Security Analysis for ISSA CZECH s.r.o.
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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
Jazyková škola Cloverleaf Ostrava is a well-established language school operating since 1993, offering a broad range of language courses including English, Cambridge exam preparation, e-learning, and corporate training.… Unlock the full Guard report to read the complete analysis.
Detected Technologies
Keep cloverbooks.cz under constant watch
Guard tracks your live infrastructure daily: certificate expiry, DNS & mail authentication drift, uptime changes, subdomain inventory, and unexpected tracker or content shifts. A full timeline captures every diff so you can prove remediation and spot regressions instantly.
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
Cancel anytime. Alerts sent to the contacts you choose. Unlock the full report to view historical timelines and alerts.
Security Headers
6 findings
35/100
GDPR Compliance
3 findings
40/100
NIS2 Compliance
9 findings
2/100
Email Security
5 findings
60/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Snapshot shown below. Unlock the full AI report for complete market insights, audience profiling, and step-by-step recommendations.
Business Intelligence
Market & Strategic Analysis
The company operates in the education sector, focusing on language training and related services. It leverages partnerships with recognized associations and maintains an e-commerce presence through Cloverbooks. The business model includes direct course offerings, exam preparation, e-learning, and supplementary services like translation and language audits. The target market includes students, professionals, and educational institutions primarily in the Czech Republic. The company benefits from a strong regional market position and a comprehensive service portfolio. The website reflects a mature digital presence with integrated marketing and tracking tools, supporting customer engagement and lead generation. Strategic partnerships with ISSA CZECH s.r.o. and other entities enhance operational capabilities and brand trust.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a solid security foundation with HTTPS enforced and a GDPR-compliant cookie consent mechanism. The login form uses secure password fields, and no sensitive data is exposed in the HTML. However, the lack of visible security headers such as Content Security Policy, HSTS, and X-Frame-Options suggests room for improvement. No vulnerability disclosures or incident response contacts are published, which could hinder rapid response to security incidents. The use of multiple third-party tracking scripts requires ongoing monitoring to mitigate privacy risks. Overall, the security posture is good but could be enhanced by implementing recommended headers and publishing security policies.
Strategic Recommendations
Priority Actions for Security Improvement
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✨Observations
AI-powered comprehensive website and business analysis.
A preview of your strategic observations is visible. Upgrade to unlock the full competitive positioning, trust signals, and branding checklist.
AI-Enhanced Website Analysis
Business Insights
ISSA CZECH s.r.o.
Jazyková škola Cloverleaf Ostrava je největší jazyková škola v regionu s tradicí od roku 1993. Nabízí širokou škálu jazykových kurzů, včetně angličtiny, přípravy na Cambridge zkoušky, e-learningu, kurzů pro děti, mládež a firemní výuku. Škola klade důraz na kvalitní lektorský tým, moderní technické zázemí a individuální přístup ke studentům.
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- Cookie consent with explicit opt-in/out
- No exposed sensitive data in HTML
- Secure login form with password field
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich content and no blocking detected.
🛡️Security Headers
HTTP security headers analysis and recommendations.
Some header findings are shown. Unlock to see the full checklist, impacted endpoints, and remediation guidance.
Security Headers
HTTP security headers analysis
Missing Strict-Transport-Security header
HIGHForces HTTPS connections Unlock the full report to read the complete fix.
Missing X-Content-Type-Options header
MEDIUMPrevents MIME type sniffing Unlock the full report to read the complete fix.
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load Unlock the full report to read the complete fix.
Missing X-XSS-Protection header
MEDIUMLegacy XSS protection (deprecated but still recommended) Unlock the full report to read the complete fix.
Missing Referrer-Policy header
LOWControls referrer information sent with requests Unlock the full report to read the complete fix.
Missing Permissions-Policy header
MEDIUMControls browser features and APIs Unlock the full report to read the complete fix.
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
Preview of GDPR checkpoints is visible. Unlock to reveal full evidence, policy excerpts, and DPIA guidance.
GDPR Compliance
Privacy and data protection assessment
No Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy Unlock the full report to read the complete fix.
EU business without adequate privacy measures
CRITICALEU businesses are subject to strict GDPR requirements Unlock the full report to read the complete fix.
Third-party services without privacy policy
HIGHDetected services: Google Analytics, Facebook, Twitter, LinkedIn, YouTube Unlock the full report to read the complete fix.
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
You can see headline NIS2 checks. Upgrade to access the full control mapping, severity breakdown, and remediation plan.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures Unlock the full report to read the complete fix.
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure Unlock the full report to read the complete fix.
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management Unlock the full report to read the complete fix.
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans Unlock the full report to read the complete fix.
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity Unlock the full report to read the complete fix.
No security contact information
HIGHNIS2 requires clear incident reporting channels Unlock the full report to read the complete fix.
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure Unlock the full report to read the complete fix.
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts Unlock the full report to read the complete fix.
Critical sector without clear security compliance
HIGHDetected sectors: transport, banking, digital Unlock the full report to read the complete fix.
📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Quick view of email authentication checks is provided. Unlock to uncover full DNS evidence, record diffs, and fix scripts.
Email Security
SPF, DKIM, and DMARC validation
DMARC not enforcing
MEDIUMDMARC policy is set to "none" Unlock the full report to read the complete fix.
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails Unlock the full report to read the complete fix.
No BIMI Record
LOWBIMI displays brand logos in email clients Unlock the full report to read the complete fix.
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery Unlock the full report to read the complete fix.
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues Unlock the full report to read the complete fix.
SPF Details
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
This is a teaser of the TLS audit. Unlock to view certificate chains, cipher support tables, and remediation steps.
SSL/TLS Security
Certificate validity and encryption analysis
Weak Protocols Supported
HIGHServer supports weak protocols: TLSv1.1 Unlock the full report to read the complete fix.
OCSP Stapling Not Enabled
LOWOCSP stapling improves performance and privacy Unlock the full report to read the complete fix.
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs Unlock the full report to read the complete fix.
Mixed Content Detected
MEDIUM2 resources loaded over insecure HTTP Unlock the full report to read the complete fix.
Partial SSL/TLS Assessment
LOWCompleted 3 of 4 security checks due to time constraints Unlock the full report to read the complete fix.
Protocol Support
OCSP Status
📊DNS Health
DNS configuration and security assessment.
Unlock the full DNS posture audit to reveal misconfigurations, zone records, and actionable fixes.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain Unlock the full report to read the complete fix.
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found Unlock the full report to read the complete fix.
Weak SPF Policy
HIGHSPF record has permissive policy allowing any server to send email Unlock the full report to read the complete fix.
DMARC Policy Set to None
LOWDMARC is configured but not enforcing any policy Unlock the full report to read the complete fix.
Domain Registration Details
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
See a glimpse of exposed services. Unlock to access full port inventories, CVE lookups, and mitigation priorities.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports Unlock the full report to read the complete fix.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Unlock to view the complete technical breakdown, stack fingerprinting, and hardening checklist.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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