Is vzhurudolu.cz Safe? Security Analysis for Martin Michálek
Check if vzhurudolu.cz is a scam or legitimate. Free security scan and reviews.
AI Summary
Vzhůru dolů is a Czech-language educational website focused on web development topics such as HTML5, CSS3, responsive design, and frontend technologies. It offers a variety of content including articles, podcasts, e-books, videos, and training courses primarily authored and operated by Martin Michálek. The site targets web developers and designers seeking modern web technology education and practical resources. Technically, the website is well-structured, mobile-optimized, and uses modern web standards with Cloudflare services for hosting and analytics. Security posture is solid with HTTPS and no visible vulnerabilities, though it lacks some advanced security headers and explicit cookie consent mechanisms. The absence of WHOIS data suggests domain privacy protection, which is reasonable for a small personal brand site. Overall, the site demonstrates high professionalism, good content quality, and trustworthy business credibility.
Detected Technologies
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
The website operates as a small-scale educational content provider in the technology and media sectors, focusing on web development education. Its business model includes free content to attract an audience and paid e-books and courses for revenue. The site maintains a consistent brand and has a presence on major social media platforms, enhancing its reach and engagement. The partnership with www.cssmine.com indicates an English-language extension or related service. The lack of physical address or phone contact suggests a primarily digital business model. The site’s market position is niche but well-regarded within the Czech web development community.
Extracted Contact Information
Marketing Intelligence Data
Email Addresses (1)
Security Posture Analysis
Comprehensive Security Assessment
The site employs HTTPS and Cloudflare for security and performance, which provides a strong baseline. However, the lack of explicit security headers such as Content Security Policy (CSP), HSTS, and X-Frame-Options reduces its defense-in-depth posture. No security policy or incident response information is published, and no vulnerability disclosure or security.txt file is present. Cookie policy exists but lacks an active consent mechanism, which may be a GDPR compliance gap. No exposed sensitive data or vulnerable libraries were detected. Overall, the security maturity is moderate with room for improvement in formal policies and technical controls.
Strategic Recommendations
Priority Actions for Security Improvement
Implement and enforce security headers including CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Martin Michálek
Web focused on HTML5, CSS3, responsive design with articles, podcasts, videos, e-books, and training by Martin Michálek.
excellent
consistent
Technical Stack
fast
excellent
good
good
Security Assessment
- HTTPS enforced
- No exposed sensitive data
- No visible vulnerable libraries
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich content in Czech language.
🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing Strict-Transport-Security header
HIGHForces HTTPS connections
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load
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 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: Facebook, Twitter, YouTube
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
📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails
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
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 83 days
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak
Mixed Content Detected
MEDIUM1 resources loaded over insecure HTTP
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
No DMARC Record
MEDIUMDMARC policy not configured
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
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings