Is cltk.cz Safe? Security Analysis for I. Český Lawn Tennis Klub Praha
https://cltk.czCheck if cltk.cz is a scam or legitimate. Free security scan and reviews.
GDPR-aligned
Data handling
EU
Hosting region
EveryPay
Secure checkout
Instant
Reports delivered
Unlock the full report for cltk.cz
Professional PDF, email delivery, and optional intelligence add-ons. One-time purchase, lifetime access.
Optional add-ons
via BREACHYour order
Already purchased? Enter unlock code
via EveryPayAI Summary
I. Český Lawn Tennis Klub Praha (ČLTK) is a well-established tennis club based in Prague, Czech Republic, with a domain age dating back to 2000. The club offers tennis court rentals, memberships, tennis lessons, and hosts tennis events, targeting tennis enthusiasts and players in the local region. The website is professionally designed with clear navigation and consistent branding, reflecting a focused business model centered on sports and hospitality services. Technically, the site uses MySUITU CMS and includes common JavaScript libraries such as jQuery and Slick Carousel, though some libraries are outdated which may pose security risks. The site is mobile optimized and performs moderately well.
Detected Technologies
12 urgent findings need attention
1 critical · 11 high
- + 4 more findings in the full report below
Keep cltk.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
3 findings
80/100
GDPR Compliance
5 findings
10/100
NIS2 Compliance
9 findings
2/100
Email Security
3 findings
85/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
The club operates primarily in the hospitality and sports sector, leveraging memberships and court rentals as revenue streams. It maintains partnerships with various local businesses and sponsors, as evidenced by the partner logos displayed. The target audience includes local tennis players and sports enthusiasts. The business model is service-oriented with a focus on community engagement and event hosting. The website content is relevant and professional, supporting the club's market position as a reputable local sports entity.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Security Posture Analysis
Comprehensive Security Assessment
The website enforces HTTPS, ensuring encrypted communications. However, it lacks important security headers such as Content-Security-Policy and X-Frame-Options, which could enhance protection against common web attacks. The use of an outdated jQuery version introduces potential vulnerabilities. No privacy or cookie policies are present, indicating compliance gaps with GDPR and related regulations. Incident response contacts and security policies are not disclosed, limiting transparency. Overall, the security posture is moderate but could be significantly improved with updated libraries, security headers, and compliance documentation.
Strategic Recommendations
Priority Actions for Security Improvement
Implement and publish comprehensive privacy and cookie policies to improve GDPR compliance.
✨Observations
Comprehensive website and business-context analysis.
AI-Enhanced Website Analysis
Business Insights
I. Český Lawn Tennis Klub Praha
A tennis club based in Prague offering tennis court rentals, club memberships, tennis lessons, and hosting tennis events.
good
consistent
Technical Stack
moderate
good
basic
basic
Security Assessment
- HTTPS enforced
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with no blocking or WAF challenges.
Get this report delivered to your inbox
Receive a summary of the cltk.cz security findings by email. Quick and easy to share with decision makers.
🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing Referrer-Policy header
Controls referrer information sent with requests
Missing Permissions-Policy header
Controls browser features and APIs
Sensitive data may be cached
Cache-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
GDPR requires a clear and accessible privacy policy
No Cookie Policy found
GDPR requires clear information about cookie usage
No Cookie Consent Banner found
GDPR requires explicit consent for non-essential cookies
EU business without adequate privacy measures
EU businesses are subject to strict GDPR requirements
Third-party services without privacy policy
Detected services: Facebook, Google APIs
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
NIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
NIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
NIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
NIS2 requires documented incident response and business continuity plans
No business continuity planning found
NIS2 emphasizes operational resilience and business continuity
No security contact information
NIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
Clear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
Consider explicitly mentioning NIS2 compliance efforts
Critical sector without clear security compliance
Detected sectors: energy, transport, banking, digital
Need this report as a PDF?
Download the complete cltk.cz security analysis as a professional PDF. Share it with your team, clients, or stakeholders.
📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No BIMI Record
BIMI displays brand logos in email clients
No MTA-STS Policy
MTA-STS enforces TLS for email delivery
No TLS-RPT Record
TLS-RPT provides reporting for email TLS issues
SPF Details
DKIM Selectors Found
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Weak Protocols Supported
Server supports weak protocols: TLSv1.1
OCSP Stapling Not Enabled
OCSP stapling improves performance and privacy
Certificate Transparency Not Implemented
Certificate is not logged in Certificate Transparency logs
SSL Certificate Expires Within 90 Days
SSL certificate expires in 76 days
Weak SSL Key Length
SSL certificate uses 256-bit key, which is considered weak
Partial SSL/TLS Assessment
Completed 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
DNSSEC is not configured for this domain
CAA Records Not Configured
Certificate Authority Authorization (CAA) records not found
No DMARC Record
DMARC 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
Service Exposed: SSH
Port 22 (SSH) is publicly accessible - SSH - Secure but can be brute-forced
How does cltk.cz compare?
See how cltk.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
Download the cltk.cz report as PDF
Get the complete analysis in a shareable PDF format, delivered instantly to your email with lifetime access.
Optional add-ons
via BREACHYour order
Already purchased? Enter unlock code
via EveryPayScan your own website
Liked the cltk.cz report? Run the same comprehensive security analysis on your domain — free, instant, and no sign-up required.
Or browse our directory of >10,000 scanned websites.
How did we do?
Your feedback directly shapes our roadmap. Rate the quality of this report, leave an optional comment, and let us know if you want our security specialists to follow up.
What others say about cltk.cz
Share your experience to help others make informed decisions. We verify every review by email and publish it once our moderation team approves it.
Community rating
—out of 5
0 reviews published