Is caslin.cz Safe? Security Analysis for Národní knihovna ČR
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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
The website www.caslin.cz serves as the portal for the Union Catalogue of the Czech Republic, a project managed by the National Library of the Czech Republic. It aggregates bibliographic data from cooperating Czech libraries and institutions, offering approximately 7.6 million records including monographs, serials, and articles. The site targets library users, researchers, and public institutions seeking bibliographic information. The business model is a public service initiative, positioning itself as a key national resource in the Czech government and non-profit sector. Technically, the site employs legacy technologies such as jQuery 1.11.3 and integrates Google Analytics and FontAwesome for UI and tracking. The site is moderately optimized for performance and mobile use, with basic accessibility and SEO features. The lack of modern frameworks or CMS indicates a relatively simple technical infrastructure. From a security perspective, the site uses HTTPS for external resources but lacks visible security headers and uses an outdated jQuery version, which could expose it to vulnerabilities. No sensitive data exposure or critical security flaws were detected, but improvements are recommended in updating libraries and implementing security headers. Privacy compliance is minimal, with a privacy statement present but no cookie consent mechanism. Overall, the site is trustworthy and serves a legitimate government function, but the absence of WHOIS data and some technical shortcomings reduce its security and compliance posture. Strategic improvements in security practices and privacy compliance would enhance its risk profile and user trust.
Detected Technologies
15 urgent findings need attention
2 critical · 13 high
- + 7 more findings in the full report below
Keep caslin.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
5 findings
60/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
The CASLIN portal is a government-backed union catalog service aggregating bibliographic data from Czech libraries and institutions. Its competitive advantage lies in its comprehensive coverage and official backing by the National Library of the Czech Republic. The business model is non-commercial, focusing on public service and information accessibility. Revenue streams are likely government-funded. The target customers are primarily researchers, librarians, and public institutions. Growth indicators are not explicit but the large record base suggests maturity. The partnership ecosystem includes Czech libraries and the National Library. Operationally, the site is stable but could benefit from modernization and enhanced digital services.
Security Posture Analysis
Comprehensive Security Assessment
The current security maturity is moderate with basic HTTPS usage and no critical vulnerabilities detected. However, the use of an outdated jQuery version and absence of security headers indicate gaps that could be exploited. There is no evidence of GDPR compliance mechanisms such as cookie consent banners, and no incident response or security policy information is publicly available. Data protection practices appear minimal. The site would benefit from adopting recognized security frameworks and improving transparency around security and privacy. Incident response readiness is unknown, representing a potential risk.
Strategic Recommendations
Priority Actions for Security Improvement
Update all JavaScript libraries, especially jQuery, to the latest secure versions to mitigate known vulnerabilities.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Národní knihovna ČR
Souborný elektronický katalog soustřeďující údaje o dokumentech ve fondech spolupracujících českých knihoven a institucí. Obsahuje cca 7,6 milionů záznamů českých a zahraničních monografií, speciálních dokumentů, seriálů a článků. Projekt Národní knihovny ČR.
good
consistent
Technical Stack
moderate
basic
basic
basic
Security Assessment
- Use of HTTPS implied by external scripts loaded over HTTPS
- No visible sensitive data exposure
- Forms use GET method with external target
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a union catalog portal for Czech libraries managed by the National Library of the Czech Republic.
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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, 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
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📧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
No email authentication configured
CRITICALDomain is vulnerable to email spoofing
🏆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 47 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
No DMARC Record
MEDIUMDMARC policy not configured
Domain Registration Details
DNS Records
DNSSEC Status
DNS Performance
⚡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 caslin.cz compare?
caslin.cz scores below average. Browse similar domains to see how competitors handle security.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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Marketing Intelligence
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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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