Is estranky.cz Safe? Security Analysis for VLTAVA LABE MEDIA a.s.
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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
eStránky.cz is a Czech website builder platform operated by VLTAVA LABE MEDIA a.s., offering free and paid plans for individuals, hobbyists, non-commercial groups, entrepreneurs, and e-commerce businesses. The platform emphasizes ease of use, quick setup, and a variety of templates, supported by phone and online assistance. The company holds a solid market position in the Czech Republic with over one million users. Technically, the site employs modern web technologies including Bootstrap, jQuery, Google Tag Manager, and a consent management platform, ensuring a responsive and user-friendly experience. Security measures include HTTPS, Google reCAPTCHA, and user consent for tracking, though explicit security headers are not visible in the HTML source. The absence of WHOIS data reduces transparency but does not negate the professional presentation and trust signals on the site. Overall, the website is well-structured, compliant with GDPR, and provides clear contact and business information.
Detected Technologies
14 urgent findings need attention
1 critical · 13 high
- + 6 more findings in the full report below
Keep estranky.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
8 findings
15/100
GDPR Compliance
5 findings
10/100
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
The business operates a freemium model with tiered subscription plans and additional paid services such as domain registration and email hosting. Its target market includes Czech individuals and organizations seeking simple website creation solutions. The company leverages partnerships with media outlets and local organizations, enhancing its ecosystem. The presence of multiple tracking and advertising services indicates a mature marketing approach. The business benefits from a recognizable parent company, VLTAVA LABE MEDIA a.s., which adds credibility. Growth potential lies in expanding e-commerce offerings and enhancing technical features. The company maintains transparent pricing and customer support, strengthening customer trust.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Company Registration
VLTAVA LABE MEDIA a.s.
CZ01440578
01440578
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a moderate to good security posture with HTTPS enforced and Google reCAPTCHA protecting forms. Consent management is implemented via Didomi CMP, aligning with GDPR requirements. However, the lack of visible security headers such as Content-Security-Policy and X-Frame-Options in the HTML source suggests room for improvement. No exposed sensitive data or vulnerabilities were detected in the content. Incident response is supported by an abuse reporting link. Overall, the security maturity is adequate for the business type but could be enhanced by implementing additional HTTP security headers and regular security audits.
Strategic Recommendations
Priority Actions for Security Improvement
Implement and verify HTTP security headers including Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy to strengthen defense against common web attacks.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
VLTAVA LABE MEDIA a.s.
eStránky.cz offers free and fast website creation services with no programming knowledge required, providing many templates and phone support.
good
consistent
Technical Stack
moderate
excellent
basic
good
Security Assessment
- HTTPS enforced
- Google reCAPTCHA on forms
- Consent management via Didomi
- Abuse reporting link provided
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website offers a free and paid tier website builder service targeting Czech users.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing Strict-Transport-Security header
HIGHForces HTTPS connections
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks
Missing X-Content-Type-Options header
MEDIUMPrevents MIME type sniffing
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load
Missing X-XSS-Protection header
MEDIUMLegacy XSS protection (deprecated but still recommended)
Missing Referrer-Policy header
LOWControls referrer information sent with requests
Missing Permissions-Policy header
MEDIUMControls browser features and APIs
Sensitive data may be cached
LOWCache-Control header should include "no-store" for sensitive pages
👤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
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
EU business without adequate privacy measures
CRITICALEU businesses are subject to strict GDPR requirements
Third-party services without privacy policy
HIGHDetected services: Google Analytics, Facebook, Cloudflare, Google APIs
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
Weak Protocols Supported
HIGHServer supports weak protocols: TLSv1.1
OCSP Stapling Not Enabled
LOWOCSP stapling improves performance and privacy
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs
Partial SSL/TLS Assessment
LOWCompleted 3 of 4 security checks due to time constraints
Protocol Support
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
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports
How does estranky.cz compare?
See how estranky.cz stacks up against similar websites in the same industry.
🔧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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