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Is stream.cz a Scam? Security Check Results - Stream.cz

stream.cz Security Report Summary

stream.cz received a security score of 58 out of 100 in Guard's comprehensive security analysis, classified as "Elevated Risk". This report covers Stream.cz's website security posture. Stream.cz operates in the Media industry in Czech Republic.

Stream.cz is a prominent Czech online video streaming platform offering a wide range of original shows, series, and movies accessible both online and offline. It operates under the umbrella of Seznam.cz, a leading Czech internet company, which enhances its market credibility and reach. The platform targets a general audience with family-friendly content, including entertainment, news, recipes, and children's programming. Technically, the website employs modern JavaScript frameworks, integrates advanced analytics tools such as Gemius and Google Tag Manager, and maintains a fast, mobile-optimized user experience. Security-wise, the site enforces HTTPS and uses error monitoring services like Sentry, though explicit security headers and incident response policies are not publicly detailed. Privacy and cookie policies are comprehensive and GDPR-compliant, linked through Seznam.cz's legal pages. Overall, Stream.cz presents a professional, trustworthy, and well-maintained digital presence with room for improvement in transparency of security policies and WHOIS data availability.

The security scan identified 31 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: JavaScript, React (implied by JSX-like code and SPA structure), Google Tag Manager, Gemius analytics, Sentry for error tracking, Seznam.cz proprietary scripts.

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 stream.cz Safe? Security Analysis for Stream.cz

https://stream.cz

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MediaCzech Republiclarge
JavaScriptReact (implied by JSX-like code and SPA structure)Google Tag ManagerGemius analyticsSentry for error tracking+1 more
Analyzed 10/14/2025Completed 3:10:42 AM5mo ago
58
Security Score
MEDIUM RISK

Above Media avg (58)

10,000+

Domains scanned

500+

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Domainstream.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

Stream.cz is a prominent Czech online video streaming platform offering a wide range of original shows, series, and movies accessible both online and offline. It operates under the umbrella of Seznam.cz, a leading Czech internet company, which enhances its market credibility and reach. The platform targets a general audience with family-friendly content, including entertainment, news, recipes, and children's programming. Technically, the website employs modern JavaScript frameworks, integrates advanced analytics tools such as Gemius and Google Tag Manager, and maintains a fast, mobile-optimized user experience. Security-wise, the site enforces HTTPS and uses error monitoring services like Sentry, though explicit security headers and incident response policies are not publicly detailed. Privacy and cookie policies are comprehensive and GDPR-compliant, linked through Seznam.cz's legal pages. Overall, Stream.cz presents a professional, trustworthy, and well-maintained digital presence with room for improvement in transparency of security policies and WHOIS data availability.

Detected Technologies

JavaScriptReact (implied by JSX-like code and SPA structure)Google Tag ManagerGemius analyticsSentry for error trackingSeznam.cz proprietary scripts

12 urgent findings need attention

1 critical · 11 high

  • + 4 more findings in the full report below
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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

8 findings

15/100

GDPR Compliance

5 findings

10/100

NIS2 Compliance

8 findings

17/100

Email Security

4 findings

70/100

🧠AI Business Intelligence

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

Business Intelligence

Market & Strategic Analysis

Stream.cz holds a strong position in the Czech media market as a leading online video portal, leveraging its parent company Seznam.cz's infrastructure and brand recognition. Its business model centers on free access to original and curated video content, monetized likely through advertising networks such as Sklik. The platform's extensive content library and mobile applications cater to diverse user segments, including families and general viewers. Strategic partnerships with related domains like televizeseznam.cz enhance its service offerings. The absence of public WHOIS data is mitigated by the reputable parent company association. Growth indicators include active content updates and integration of modern marketing and analytics tools, positioning Stream.cz competitively in the Czech digital media landscape.

Security Posture Analysis

Comprehensive Security Assessment

The website demonstrates a solid security posture with mandatory HTTPS encryption and integration of monitoring tools like Sentry for error tracking. While explicit security headers such as Content-Security-Policy or X-Frame-Options are not explicitly visible in the provided data, the overall implementation suggests adherence to standard security practices. No vulnerabilities or exposed sensitive data were detected in the HTML content. However, the lack of publicly available security policies, incident response contacts, or vulnerability disclosure mechanisms indicates areas for enhancement. Strengthening transparency around security governance and providing dedicated security contact channels would improve trust and compliance readiness.

Strategic Recommendations

Priority Actions for Security Improvement

1

Publish explicit security headers and verify their implementation to enhance protection against common web attacks.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

Stream.cz

Description:

Videoportál Stream.cz plný stovek originálních pořadů, seriálů a filmů dostupných online i offline.

Key Services:
Online video streamingOriginal video contentVideo on demandMobile applications
Content Quality:

excellent

Branding:

consistent

Technical Stack

Technologies:
JavaScriptReact (implied by JSX-like code and SPA structure)Google Tag ManagerGemius analyticsSentry for error trackingSeznam.cz proprietary scripts
Frameworks:
Schema.org JSON-LD structured data
Platforms:
WebiOS (App Store link)Android (Google Play link)
Performance:

fast

Mobile:

excellent

Accessibility:

good

SEO:

good

Security Assessment

Security Score:
85/100
Best Practices:
  • HTTPS enforced
  • Use of secure cookies (implied)
  • No exposed sensitive data in HTML
  • Use of Sentry for error monitoring

Analytics & Tracking

Services:
GemiusGoogle Tag ManagerSklikSentry
Tracking Level:moderate
Privacy Compliance:good

Advertising & Marketing

Ad Networks:
Sklik
Tracking Pixels:
GemiusSklikSeznam.cz tracking
Marketing Tools:
SklikGemius
Transparency Level:good

Website Quality Assessment

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

Key Observations

1

Website is a professional Czech online video streaming portal with extensive original content.

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🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

15/100
Score

Missing Strict-Transport-Security header

HIGH

Forces HTTPS connections

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks

Missing X-Content-Type-Options header

MEDIUM

Prevents MIME type sniffing

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

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

10/100
Score

No Privacy Policy found

HIGH

GDPR requires a clear and accessible privacy policy

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

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

GDPR Compliance Analysis

Privacy Policy0% confidence
Cookie Policy0% 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

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 ip4:91.239.201.224 ip4:91.239.201.89 ~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

95/100
Score

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 50 days

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints

Certificate Details

Subject:*.stream.cz
Issuer:R12
Valid Until:12/4/2025 (50 days)
SANs:*.stream.cz, *.televizeseznam.cz, mixer.cz +3 more

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

DNS Records

A Records:77.75.79.65
AAAA Records:2a02:598:a::79:65
Name Servers:
ams.seznam.czDNS only
ans.seznam.czDNS only
MX Records:
20: mx2.seznam.cz
10: mx1.seznam.cz
SOA:Serial: 1760427315, TTL: 300s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:35ms

SPF Analysis

SPF Record:
v=spf1 include:spf.szn.cz ip4:91.239.201.224 ip4:91.239.201.89 ~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 stream.cz compare?

See how stream.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

Stream.cz utilizes a modern web technology stack with extensive use of JavaScript, likely React or similar SPA frameworks, and integrates multiple analytics and tracking services including Gemius, Google Tag Manager, and Sklik. The site is well-optimized for mobile devices and demonstrates fast loading performance. Structured data using Schema.org JSON-LD enhances SEO and content discoverability. Hosting details are not explicitly available, but the use of Seznam.cz domains for assets suggests internal hosting or CDN usage. The site shows no signs of technical debt or outdated libraries in the provided content. Opportunities exist to improve security header transparency and to document technical infrastructure more explicitly for compliance purposes.
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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

Domainstream.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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