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Is blesk.cz a Scam? Security Check Results - Czech News Center

blesk.cz Security Report Summary

blesk.cz received a security score of 61 out of 100 in Guard's comprehensive security analysis, classified as "Moderate Risk". This report covers Czech News Center's website security posture. Czech News Center operates in the Media industry in Czech Republic.

Blesk.cz is a leading Czech news portal operated by Czech News Center, offering a wide range of content including news, celebrity gossip, sports, entertainment, and weather forecasts. The site targets a broad general audience in the Czech Republic and operates on an advertising-supported business model with premium subscription options. Technically, the website employs a modern tech stack including jQuery, Google Tag Manager, and multiple third-party analytics and advertising services, ensuring a robust digital presence with good mobile optimization and SEO practices. Security-wise, the site enforces HTTPS, uses a consent management platform for GDPR compliance, and integrates reputable ad and analytics networks, although additional security headers could enhance protection. Overall, the website demonstrates a mature digital infrastructure with strong business credibility and compliance posture.

The security scan identified 30 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: jQuery, Google Tag Manager, Didomi Consent SDK, Gemius Analytics, Piano Paywall, Marfeel SDK, Recombee API Client, Rubicon Project Prebid, Google Publisher Tags, CNC Ads Wrapper.

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 blesk.cz Safe? Security Analysis for Czech News Center

https://blesk.cz

Check if blesk.cz is a scam or legitimate. Free security scan and reviews.

MediaCzech Republiclarge
jQueryGoogle Tag ManagerDidomi Consent SDKGemius AnalyticsPiano Paywall+5 more
Analyzed 10/13/2025Completed 2:08:03 PM5mo ago
61
Security Score
MEDIUM RISK

Above Media avg (58)

10,000+

Domains scanned

500+

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Domainblesk.cz
Access tierFull report or marketing add-on

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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

Blesk.cz is a leading Czech news portal operated by Czech News Center, offering a wide range of content including news, celebrity gossip, sports, entertainment, and weather forecasts. The site targets a broad general audience in the Czech Republic and operates on an advertising-supported business model with premium subscription options. Technically, the website employs a modern tech stack including jQuery, Google Tag Manager, and multiple third-party analytics and advertising services, ensuring a robust digital presence with good mobile optimization and SEO practices. Security-wise, the site enforces HTTPS, uses a consent management platform for GDPR compliance, and integrates reputable ad and analytics networks, although additional security headers could enhance protection. Overall, the website demonstrates a mature digital infrastructure with strong business credibility and compliance posture.

Detected Technologies

jQueryGoogle Tag ManagerDidomi Consent SDKGemius AnalyticsPiano PaywallMarfeel SDKRecombee API ClientRubicon Project PrebidGoogle Publisher TagsCNC Ads Wrapper

12 urgent findings need attention

1 critical · 11 high

  • + 4 more findings in the full report below
Continuous monitoring

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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

4 findings

55/100

GDPR Compliance

4 findings

25/100

NIS2 Compliance

8 findings

17/100

Email Security

4 findings

75/100

🧠AI Business Intelligence

Technology stack, business insights, and market analysis powered by AI.

Business Intelligence

Market & Strategic Analysis

Blesk.cz holds a strong market position as a major Czech news outlet under Czech News Center. Its competitive advantage lies in its broad content offering and integration with multiple media properties and partner sites. Revenue streams primarily come from advertising and premium subscriptions managed via partners like ikiosek.cz. The target customer segment is the general Czech population interested in news and entertainment. Growth indicators include extensive use of modern marketing and analytics tools and a comprehensive consent management system. The partnership ecosystem includes multiple related media domains and payment processors, reflecting a well-integrated media group operation.

Security Posture Analysis

Comprehensive Security Assessment

The website exhibits a solid security posture with enforced HTTPS and GDPR-compliant consent management via Didomi. Use of reputable third-party analytics and ad services reduces risk exposure. However, the absence of some security headers like Content-Security-Policy and X-Frame-Options suggests room for improvement. No vulnerabilities or exposed sensitive data were detected in the analyzed content. Incident response and security policy information are not publicly disclosed, which is common for media sites but could be enhanced for transparency. Overall, the site maintains good security hygiene appropriate for its business type.

Strategic Recommendations

Priority Actions for Security Improvement

1

Implement additional HTTP security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to enhance protection against common web attacks.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

Czech News Center

Description:

Blesk is a Czech news portal providing news about celebrities, events, sports, advice, and weather forecasts.

Key Services:
News articlesCelebrity newsSports newsWeather forecastsEntertainment content
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
jQueryGoogle Tag ManagerDidomi Consent SDKGemius AnalyticsPiano PaywallMarfeel SDKRecombee API ClientRubicon Project PrebidGoogle Publisher TagsCNC Ads Wrapper
Platforms:
DesktopMobile
Performance:

moderate

Mobile:

good

Accessibility:

basic

SEO:

good

Security Assessment

Security Score:
85/100
Best Practices:
  • HTTPS enforced
  • Consent management platform (Didomi) implemented
  • No exposed sensitive data detected
  • Use of reputable analytics and ad services

Analytics & Tracking

Services:
GemiusGoogle AnalyticsRecombeeOnThe.io
Tracking Level:extensive
Privacy Compliance:good

Advertising & Marketing

Ad Networks:
Google Ad ManagerRubicon ProjectAdformDoubleClickCPEX
Tracking Pixels:
GemiusDidomiPianoMarfeelRecombeeOnThe.io
Marketing Tools:
Didomi Consent SDKPiano Paywall
Transparency Level:good

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 major Czech news portal with extensive content and advertising.

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🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

55/100
Score

Missing Strict-Transport-Security header

HIGH

Forces HTTPS connections

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks

Weak Referrer-Policy configuration

LOW

Current value: "no-referrer-when-downgrade"

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

👤GDPR Compliance

Privacy and data protection assessment under GDPR regulations.

GDPR Compliance

Privacy and data protection assessment

25/100
Score

No Privacy Policy found

HIGH

GDPR requires a clear and accessible privacy policy

No Cookie Consent Banner found

HIGH

GDPR requires explicit consent for non-essential cookies

EU business without adequate privacy measures

CRITICAL

EU businesses are subject to strict GDPR requirements

Third-party services without privacy policy

HIGH

Detected services: Google Analytics, Facebook, Twitter, YouTube, Google APIs, Google Ads

GDPR Compliance Analysis

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

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

17/100
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 business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity

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

75/100
Score

Weak DKIM Key

HIGH

DKIM selector 'google' uses 216-bit key

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.google.com mx ip4:207.126.144.0/20 ip4:91.235.52.159 ip4:91.235.52.160 ~all
DNS Lookups:2/10
Policy:~all
DKIM Selectors Found
Selector:google(216-bit rsa)

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

62/100
Score

Weak Protocols Supported

HIGH

Server supports weak protocols: TLSv1.1

OCSP Stapling Not Enabled

LOW

OCSP stapling improves performance and privacy

Certificate Transparency Not Implemented

LOW

Certificate is not logged in Certificate Transparency logs

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 41 days

Mixed Content Detected

MEDIUM

4 resources loaded over insecure HTTP

Partial SSL/TLS Assessment

LOW

Completed 3 of 4 security checks due to time constraints

Protocol Support

TLSv1.3TLSv1.2TLSv1.1

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

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found

No DMARC Record

MEDIUM

DMARC policy not configured

Domain Registration Details

Domain Age
28 years(mature)

DNS Records

A Records:91.235.52.165
Name Servers:
josephine.ns.cloudflare.com
rick.ns.cloudflare.com
MX Records:
20: alt2.aspmx.l.google.com
30: aspmx2.googlemail.com
30: aspmx3.googlemail.com
10: aspmx.l.google.com
100: onlinedev.cncenter.cz
100: onlineweb.cncenter.cz
20: alt1.aspmx.l.google.com
SOA:Serial: 2385713909, TTL: 1800s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:106ms

SPF Analysis

SPF Record:
v=spf1 include:_spf.google.com mx ip4:207.126.144.0/20 ip4:91.235.52.159 ip4:91.235.52.160 ~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 blesk.cz compare?

See how blesk.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 website uses a combination of legacy and modern JavaScript libraries, including jQuery and module-based SDKs. It leverages multiple third-party services for analytics, advertising, consent management, and paywall functionality. Static assets are served via CDN77, indicating a distributed hosting approach. Performance is moderate with room for optimization, especially in script loading and resource management. SEO is well addressed with comprehensive meta tags and Open Graph data. Mobile optimization is good, supported by responsive design and adaptive navigation. The site does not appear to use a common CMS or framework explicitly but is likely custom-built or heavily customized. Technical risks include dependency on multiple third-party scripts which require ongoing management.
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PDF Report & Export

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39.90 €one-time • Incl. 21% VAT

Marketing Intelligence

Contact emails, phone numbers & warm leads

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

Domainblesk.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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