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Is post.cz a Scam? Security Check Results - Seznam.cz, a.s.

post.cz Security Report Summary

post.cz received a security score of 68 out of 100 in Guard's comprehensive security analysis, classified as "Moderate Risk". This report covers Seznam.cz, a.s.'s website security posture. Seznam.cz, a.s. operates in the Media industry in Czech Republic.

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.

The security scan identified 25 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: JavaScript, CSS, HTML5, OAuth 2.0, OpenID Connect.

About this security scan

Guard performs automated security assessments of websites by analyzing SSL/TLS certificates, HTTP security headers, DNS configuration, email authentication protocols (SPF, DKIM, DMARC), GDPR compliance indicators, NIS2 directive compliance, network exposure, and AI-powered business intelligence. Each report provides domain-specific findings, risk scores, and actionable recommendations.

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Is post.cz Safe? Security Analysis for Seznam.cz, a.s.

https://post.cz

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MediaCzech Republiclarge
JavaScriptCSSHTML5OAuth 2.0OpenID Connect
Analyzed 10/17/2025Completed 12:18:53 AM5mo ago
68
Security Score
MEDIUM RISK

Above Media avg (58)

10,000+

Domains scanned

500+

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Domainpost.cz
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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

JavaScriptCSSHTML5OAuth 2.0OpenID Connect

8 urgent findings need attention

1 critical · 7 high

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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

1

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

Company:

Seznam.cz, a.s.

Description:

Přihlášením do jednoho účtu můžete používat vše od Seznamu. Email, Mapy, Sreality, Stream, firemní profil Seznam naplno a mnohem víc.

Key Services:
EmailMapsReal Estate ListingsStreamingBusiness Profiles
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
JavaScriptCSSHTML5OAuth 2.0OpenID Connect
Performance:

moderate

Mobile:

good

Accessibility:

basic

SEO:

basic

Security Assessment

Security Score:
75/100
Best Practices:
  • HTTPS enforced
  • OAuth integration with major providers
  • Password strength indicators
  • Two-factor authentication support

Analytics & Tracking

Tracking Level:moderate
Privacy Compliance:basic

Advertising & Marketing

Tracking Pixels:
h.seznam.cz
Transparency Level:basic

Website Quality Assessment

Design Quality:good
User Experience:good
Content Relevance:good
Navigation Clarity:good
Professionalism:good
Trustworthiness:high

Key Observations

1

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

80/100
Score

Missing Referrer-Policy header

LOW

Controls referrer information sent with requests

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

Sensitive data may be cached

LOW

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

40/100
Score

No Cookie Policy found

HIGH

GDPR requires clear information about cookie usage

No Cookie Consent Banner found

HIGH

GDPR requires explicit consent for non-essential cookies

No Data Protection Officer mentioned

LOW

Large organizations may need to designate a DPO under GDPR

EU business without adequate privacy measures

CRITICAL

EU businesses are subject to strict GDPR requirements

GDPR Compliance Analysis

Privacy Policy85% confidence
Cookie Policy0% confidence
Contact Information Found90% confidence
phoneform

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

25/100
Score

No information security framework found

HIGH

NIS2 requires documented cybersecurity and information security measures

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure

No security policy documentation found

HIGH

NIS2 requires documented cybersecurity governance and risk management

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans

No security contact information

HIGH

NIS2 requires clear incident reporting channels

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure

No NIS2 reference found

LOW

Consider 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

70/100
Score

No DKIM record found

MEDIUM

DKIM adds cryptographic signatures to emails

No BIMI Record

LOW

BIMI displays brand logos in email clients

No MTA-STS Policy

MEDIUM

MTA-STS enforces TLS for email delivery

No TLS-RPT Record

LOW

TLS-RPT provides reporting for email TLS issues

SPF
Sender Policy Framework
DKIM
DomainKeys Identified Mail
DMARC
Domain-based Message Authentication
MX Records
Mail Exchange Records
BIMI
Brand Indicators
MTA-STS
Mail Transfer Agent Security
TLS-RPT
TLS Reporting
DNSSEC
DNS Security
SPF Details
Record:
v=spf1 include:spf.szn.cz ~all
DNS Lookups:1/10
Policy:~all
DMARC Details
Policy:quarantine
Aggregate Reports:abuse@seznam.cz

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

75/100
Score

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 58 days

Weak SSL Key Length

HIGH

SSL certificate uses 256-bit key, which is considered weak

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints

Certificate Details

Subject:login.szn.cz
Issuer:E8
Valid Until:12/15/2025 (58 days)
SANs:login.szn.cz

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

75/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

Domain Transfer Lock Not Enabled

MEDIUM

Domain can be transferred without authorization

Domain Delete Lock Not Enabled

LOW

Domain can be deleted without additional verification

Domain Registration Details

Domain Age
25 years(mature)
Protection Level
none
Suspicious Indicators Detected
  • No domain protection locks enabled

DNS Records

A Records:77.75.76.33
AAAA Records:2a02:598:2::33
Name Servers:
ams.seznam.czDNS only
ans.seznam.czDNS only
MX Records:
10: eb540f8c120068d7.mx1.emailprofi.seznam.cz
20: eb540f8c120068d7.mx2.emailprofi.seznam.cz
SOA:Serial: 1760632965, TTL: 300s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:147ms

SPF Analysis

SPF Record:
v=spf1 include:spf.szn.cz ~all

Network Security

Port scanning and network exposure analysis.

Network Security

Port scanning and network exposure analysis

100/100
Score

Good Network Security Posture

LOW

No unnecessary services detected on common risky ports

How does post.cz compare?

See how post.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

The site uses modern HTML5, CSS, and JavaScript technologies with OAuth 2.0 integration for authentication. It supports multiple identity providers, indicating a flexible and scalable authentication infrastructure. The presence of password strength indicators and multi-factor authentication options shows attention to security best practices. Performance appears moderate with no explicit indicators of slow loading. Mobile optimization is good, and the site is responsive. However, no CMS or hosting provider information is evident from the content. SEO optimization is basic with meta description present but no Open Graph or JSON-LD structured data detected. Accessibility is basic and could be improved. Overall, the technical implementation is solid but has room for enhancements in security headers and privacy compliance.
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PDF Report & Export

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39.90 €one-time • Incl. 21% VAT

Marketing Intelligence

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49.90 €one-time • Incl. 21% VAT

Plan Comparison

FeaturePDF ReportMarketing+
Full security analysis
Professional PDF export
Email delivery
Lifetime access + unlock code
Contact emails & phones
Marketing outreach data

Already purchased?

Order summary

Domainpost.cz
Access tierFull report or marketing add-on

Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.

VisaMastercardApple PayGoogle Pay

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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