Is tenderarena.cz Safe? Security Analysis for Tender systems s.r.o.
https://tenderarena.czCheck if tenderarena.cz is a scam or legitimate. Free security scan and reviews.
Below Government avg (70)
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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
Tender arena is a Czech Republic-based certified electronic tool designed for public procurement and e-auctions, primarily serving contracting authorities and suppliers. The platform facilitates the announcement of tenders and submission of bids, positioning itself as a specialized government sector service. The business is operated by Tender systems s.r.o., established in 2013, indicating a mature presence in the public procurement technology market. Technically, the website is built using Angular 8.2.14 and integrates Google Analytics for user tracking. Hosting is provided by Websupport, a Czech hosting provider, consistent with the domain's nameservers. The site demonstrates good mobile optimization and SEO practices but lacks some accessibility features. Performance is moderate, with modern frameworks employed. From a security perspective, the site uses HTTPS with excellent SSL configuration but lacks visible security headers such as Content-Security-Policy or X-Frame-Options. No sensitive data exposure or vulnerable libraries were detected. However, the absence of privacy and cookie policies, as well as contact information for security incidents, represents compliance and transparency gaps. Overall, the website is professional and trustworthy within its niche but would benefit from enhanced privacy compliance and security best practices. There are no indications of malicious content or blocking mechanisms, making it accessible and functional for its intended audience.
Detected Technologies
14 urgent findings need attention
1 critical · 13 high
- + 6 more findings in the full report below
Keep tenderarena.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
7 findings
20/100
GDPR Compliance
5 findings
10/100
NIS2 Compliance
9 findings
2/100
Email Security
6 findings
55/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Tender arena operates in the government sector, providing an electronic platform for public procurement and e-auctions in the Czech Republic. Its competitive advantage lies in certification and specialization for public tenders, targeting contracting authorities and suppliers. The business model revolves around offering a digital tool to streamline procurement processes, likely generating revenue through service fees or subscriptions. The company maintains a focused partnership ecosystem, with no evident subsidiaries or parent companies. Growth indicators include a stable domain age and consistent branding. The platform's integration with official Czech services (fen.cz) suggests strategic alignment with regulatory frameworks.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a moderate security maturity level with HTTPS enforced and no visible vulnerabilities in the HTML content. However, the lack of security headers and absence of a published security policy or incident response contacts indicate areas for improvement. GDPR compliance is weak due to missing privacy and cookie policies. No vulnerability disclosure or security.txt files were found, limiting transparency for security researchers. The platform would benefit from implementing security best practices such as CSP headers, explicit privacy notices, and incident response mechanisms to enhance trust and compliance.
Strategic Recommendations
Priority Actions for Security Improvement
Implement and publish a comprehensive privacy policy and cookie policy with GDPR compliance details.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Tender systems s.r.o.
Tender arena – certifikovaný elektronický nástroj pro zadávání veřejných zakázek a e-aukce
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enabled
- No exposed sensitive data in HTML
- No visible vulnerable libraries
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with no blocking or WAF challenges.
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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
👤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, 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 DMARC reporting
LOWDMARC aggregate reports not configured
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
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 43 days
HSTS Not Enabled
MEDIUMHTTP Strict Transport Security (HSTS) is not configured
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 tenderarena.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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