Is dc4.cz Safe? Security Analysis for DC4 CZ, 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
DC4 CZ, a. s. is a Czech Republic-based IT solutions provider with nearly two decades of experience, specializing in innovative IT infrastructure, data center solutions, enterprise networking, and cybersecurity. The company holds a platinum partnership with Dell Technologies and collaborates with other technology leaders such as SonicWall, VMware, and Cisco. Their subsidiary, Connectum, offers internet connectivity and hosting services, complementing DC4's comprehensive ICT offerings. The website reflects a mature business with a professional digital presence and clear service descriptions targeting B2B and B2C clients. Technically, the website employs modern JavaScript libraries including jQuery, Swiper, Anime.js, and Leaflet for interactive maps, alongside Google Tag Manager and Facebook Pixel for analytics and marketing. The site is mobile-optimized with good SEO practices but lacks some accessibility features and security headers. HTTPS is enforced, ensuring secure communication. From a security perspective, the site demonstrates good practices with no exposed sensitive data or vulnerable libraries detected. However, the absence of security headers and privacy/cookie policies indicates areas for improvement in compliance and defense-in-depth. The WHOIS data is unavailable, which slightly impacts domain trust but is mitigated by the company's visible certifications and business legitimacy. Overall, DC4 CZ presents a trustworthy and professional IT service provider with solid market positioning in the Czech Republic. Strategic recommendations include enhancing privacy compliance, implementing security headers, and publishing vulnerability disclosure information to strengthen security posture and user trust.
Detected Technologies
13 urgent findings need attention
1 critical · 12 high
- + 5 more findings in the full report below
Keep dc4.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
8 findings
17/100
Email Security
4 findings
75/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
DC4 CZ operates in the technology sector, focusing on IT infrastructure, data center modernization, and enterprise networking solutions. Their business model revolves around direct service provision, strategic partnerships, and product distribution, primarily with Dell Technologies. The company targets medium to large enterprises requiring advanced IT solutions and outsourcing services. Growth indicators include expanding employee count, subsidiary establishment (Connectum), and elevated partner statuses. The partnership ecosystem is robust, involving leading technology vendors, enhancing competitive advantage. The company emphasizes customer-centric service with a strong local presence and a family-like corporate culture, supporting sustainable growth and market trust.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Company Registration
DC4 CZ, a. s.
CZ29242681
29242681
Security Posture Analysis
Comprehensive Security Assessment
The website's security maturity is moderate to good. HTTPS is properly implemented, ensuring encrypted data transmission. No sensitive data leakage or vulnerable third-party libraries were identified. However, the lack of security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options reduces protection against common web attacks. The absence of privacy and cookie policies indicates compliance gaps with GDPR and related regulations. No incident response or security policy information is publicly available, limiting transparency. The use of tracking scripts like Facebook Pixel and Google Tag Manager suggests moderate user tracking, which should be balanced with privacy compliance. Overall, the security posture is adequate but can be improved by adopting recommended headers, policies, and disclosure practices.
Strategic Recommendations
Priority Actions for Security Improvement
Implement comprehensive privacy and cookie policies with explicit GDPR compliance statements.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
DC4 CZ, a. s.
Téměř dvě dekády udržuje DC4 strategické partnerství se společností Dell za účelem poskytování inovativních IT řešení, od koncových bodů až po infrastrukturu. Společně s Dell přetváříme IT odvětví prostřednictvím transformace, která kombinuje špičkovou infrastrukturu, úložiště dat, hybridní cloud a řešení ochrany dat. Společnosti DC4 byla díky pravidelnému proškolování udělena kompetence pro podnikové aplikace Dell EMC, konvergovanou infrastrukturu, vysoce výkonné výpočty, OEM, úložiště, servery a softwarově definovaná infrastruktura.
excellent
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- No exposed sensitive data in HTML
- No visible vulnerable libraries
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich content and professional design.
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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, LinkedIn, 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
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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
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 56 days
Mixed Content Detected
MEDIUM1 resources loaded over insecure HTTP
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 dc4.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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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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