Is ceznet.cz Safe? Security Analysis for ČEZNET 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
ČEZNET s.r.o. is a Czech-based internet service provider specializing in high-speed optical fiber internet (FTTH) and IPTV services. As part of the ČEZ Group, a major energy conglomerate, ČEZNET leverages strong corporate backing to offer reliable and advanced telecommunications solutions primarily targeting residential and business customers within the Czech Republic. The company emphasizes quality, stability, and customer-centric service, supported by a modern fiber-optic infrastructure and comprehensive customer support channels. Technically, the website employs a modern technology stack including jQuery, Bootstrap, Google reCAPTCHA, and Cookiebot for consent management, ensuring a responsive and user-friendly experience. The site integrates tracking and advertising tools such as Adform and Google Tag Manager, balanced with GDPR-compliant privacy and cookie policies. Performance and accessibility are well addressed, with good SEO practices and mobile optimization. From a security perspective, the site enforces HTTPS and uses reCAPTCHA to protect forms, with a cookie consent mechanism in place. While explicit security headers are not visible in the HTML, the overall posture is good with no evident vulnerabilities or exposed sensitive data. The absence of WHOIS data is a notable gap but does not detract significantly from the overall legitimacy given the strong corporate branding and content quality. Overall, ČEZNET presents a professional, trustworthy, and well-maintained digital presence aligned with its business objectives. Strategic recommendations include enhancing explicit security header implementation and continuous monitoring of third-party scripts to maintain security and compliance.
Detected Technologies
9 urgent findings need attention
1 critical · 8 high
- + 1 more findings in the full report below
Keep ceznet.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
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Security Headers
2 findings
85/100
GDPR Compliance
3 findings
40/100
NIS2 Compliance
9 findings
2/100
Email Security
4 findings
75/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
ČEZNET operates as a medium-sized ISP within the Czech telecommunications sector, leveraging the brand strength and infrastructure of the ČEZ Group. Its competitive advantage lies in offering FTTH technology with direct fiber to the home, ensuring superior internet speeds and reliability. The company targets both residential and business segments, providing bundled services including internet, IPTV, and related hardware. Revenue streams likely include subscription fees for internet and TV services, installation fees, and device sales or rentals. The company maintains a strong partnership ecosystem, including regional consultants and integration with the ČEZ Group's energy infrastructure. Growth indicators include network expansion announcements and promotional campaigns such as PlayStation 5 giveaways. The website content and structure reflect a mature business with clear customer engagement strategies and compliance with privacy regulations.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (2)
Security Posture Analysis
Comprehensive Security Assessment
The security posture of ČEZNET's website is solid, with HTTPS enforced and use of Google reCAPTCHA to mitigate automated abuse of forms. The presence of a comprehensive cookie consent banner demonstrates GDPR awareness and compliance. No sensitive data is exposed in the HTML source, and no vulnerable libraries were detected. However, explicit security headers such as Content-Security-Policy and X-Frame-Options are not visible in the provided content and should be verified server-side. The lack of a published security policy or incident response contact is a minor gap. Overall, the site shows good security hygiene appropriate for a commercial ISP, with recommendations to enhance header policies and maintain vigilance on third-party scripts.
Strategic Recommendations
Priority Actions for Security Improvement
Implement and verify explicit security headers such as Content-Security-Policy, X-Frame-Options, and Referrer-Policy to strengthen browser security.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
ČEZNET s.r.o.
ČEZNET s.r.o. is a Czech company providing high-speed optical internet services, including internet, television, and related devices. It is part of the ČEZ Group, a major energy conglomerate in the Czech Republic. The company emphasizes quality, stability, and customer care with fiber-to-the-home (FTTH) technology.
excellent
consistent
Technical Stack
moderate
good
good
good
Security Assessment
- HTTPS enforced
- Use of Google reCAPTCHA v3 for forms
- Cookie consent banner with opt-in/out
- No exposed sensitive data in HTML
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich content and interactive features.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Weak Strict-Transport-Security configuration
LOWCurrent value: "max-age=15552000; includeSubDomains"
Missing X-XSS-Protection header
MEDIUMLegacy XSS protection (deprecated but still recommended)
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
No Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy
EU business without adequate privacy measures
CRITICALEU businesses are subject to strict GDPR requirements
Third-party services without privacy policy
HIGHDetected services: Google Analytics, Cloudflare
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity
No security contact information
HIGHNIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts
Critical sector without clear security compliance
HIGHDetected 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
DMARC not enforcing
MEDIUMDMARC policy is set to "none"
No BIMI Record
LOWBIMI displays brand logos in email clients
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues
SPF Details
DKIM Selectors Found
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Partial SSL/TLS Assessment
LOWCompleted 2 of 4 security checks due to time constraints
Certificate Details
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found
DMARC Policy Set to None
LOWDMARC is configured but not enforcing any policy
Domain Registration Details
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
High-Risk Service Exposed: FTP
HIGHPort 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer
How does ceznet.cz compare?
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🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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PDF Report & Export
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Marketing Intelligence
Contact emails, phone numbers & warm leads
Plan Comparison
| Feature | PDF Report | Marketing+ |
|---|---|---|
| Full security analysis | ||
| Professional PDF export | ||
| Email delivery | ||
| Lifetime access + unlock code | ||
| Contact emails & phones | — | |
| Marketing outreach data | — |
Already purchased?
Order summary
Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.
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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