Is post.cz Safe? Security Analysis for Seznam.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
Seznam.cz, a.s. operates a comprehensive Czech internet portal offering a variety of digital services including email, maps, real estate listings, and streaming. The login portal analyzed is a secure gateway to these services, supporting multiple OAuth providers such as Google, Microsoft, Apple, BankID, and MojeID, indicating a mature and user-friendly authentication infrastructure. The website is well-branded and targets general internet users primarily in the Czech Republic and Slovakia. Technically, the site uses modern web technologies with responsive design and password strength indicators, although some accessibility and security header enhancements could be made. Security posture is solid with HTTPS enforced and multi-factor authentication options, but lacks visible security headers and explicit incident response contacts. Privacy compliance is partially addressed with clear privacy and terms of service links, but no cookie consent mechanism is present. Overall, the site is trustworthy and professionally maintained, though improvements in privacy and security transparency are recommended.
Detected Technologies
8 urgent findings need attention
1 critical · 7 high
Keep post.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
3 findings
80/100
GDPR Compliance
4 findings
40/100
NIS2 Compliance
7 findings
25/100
Email Security
4 findings
70/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Seznam.cz holds a leading position in the Czech digital media market, providing essential online services to a large user base. Its business model revolves around offering free and premium digital services supported by advertising and partnerships. The integration of multiple third-party identity providers enhances user convenience and security. The company demonstrates consistent branding and a broad service ecosystem, including email, maps, and real estate platforms. While direct contact information is not exposed on the login page, the presence of comprehensive privacy policies and terms of service reflects regulatory compliance and corporate governance. The lack of WHOIS data publicly available suggests privacy protection measures, common for large enterprises. Strategic partnerships with identity providers like BankID and MojeID indicate a robust authentication ecosystem.
Security Posture Analysis
Comprehensive Security Assessment
The website enforces HTTPS and supports multiple secure authentication methods, including OAuth and two-factor authentication, which are strong security indicators. Password strength meters and SMS verification codes further enhance account security. However, the absence of visible security headers such as Content-Security-Policy and X-Frame-Options is a notable gap that could expose the site to certain web-based attacks. No direct incident response or vulnerability disclosure information is provided, which could hinder rapid response to security incidents. The site does not display cookie consent banners, which may affect GDPR compliance. Overall, the security posture is good but could be improved by implementing recommended headers, enhancing privacy notices, and providing clear security contact channels.
Strategic Recommendations
Priority Actions for Security Improvement
Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web vulnerabilities.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Seznam.cz, a.s.
Přihlášením do jednoho účtu můžete používat vše od Seznamu. Email, Mapy, Sreality, Stream, firemní profil Seznam naplno a mnohem víc.
good
consistent
Technical Stack
moderate
good
basic
basic
Security Assessment
- HTTPS enforced
- OAuth integration with major providers
- Password strength indicators
- Two-factor authentication support
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a login portal for Seznam.cz email and related services.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
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 Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
No Data Protection Officer mentioned
LOWLarge organizations may need to designate a DPO under GDPR
EU business without adequate privacy measures
CRITICALEU businesses are subject to strict GDPR requirements
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 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
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
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 58 days
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak
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
Domain Transfer Lock Not Enabled
MEDIUMDomain can be transferred without authorization
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification
Domain Registration Details
- •No domain protection locks enabled
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 post.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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