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Security report for cra.cz

České Radiokomunikace a.s. · Telecommunications · Czech Republic

Low risk. 1 critical or high finding in Email security.

Security score

91/100

Risk levelLow

0–100, higher is better. How it is calculated

České Radiokomunikace a.s. is a leading Czech provider of unique television, radio, and internet infrastructure services. The company focuses on transforming technological trends into innovative media, telecommunications, and IT infrastructure solutions, targeting business and technology sectors primarily within the Czech Republic. Their key services include data centers, cloud computing, IoT, and broadcasting infrastructure. The website reflects a professional and consistent brand image with good content quality and user experience. Technically, the website employs modern technologies such as Google Tag Manager, Microsoft Clarity, Cookiebot CMP, and likely Cloudflare for hosting and security. The site is mobile-optimized with good SEO and accessibility basics. Performance is moderate, with efficient font loading and asynchronous script execution. Privacy compliance is well addressed through a comprehensive cookie consent mechanism with granular user controls and integration of Google Consent Mode. From a security perspective, the site enforces HTTPS and uses cookie consent best practices. However, it lacks explicit security headers and visible incident response or security contact information. No vulnerabilities or exposed sensitive data were detected in the provided content. The absence of WHOIS data reduces the domain trustworthiness score, but the website's professional presentation and technology usage support its legitimacy. Overall, the website is secure, privacy-conscious, and professionally maintained, though improvements in transparency regarding privacy policies, contact information, and security disclosures are recommended to enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 100 · Low
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

1 finding rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

Need hands-on remediation? Email guard@offseq.com

Keep watching cra.cz

This scan found 11 issues across 5 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
85
Security headers
95
Email security
80
DNS health
85
Network security
100
GDPR outside view
100
Average
91

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention cra.cz, from OffSeq Breach.

Total records
113
Employees
32
Customers
65
Third parties
16
Weak passwords
3%

Latest record dated 2026-06-13 · 24 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for cra.cz.

Select it in the checkout above.

Masked preview

  • –manager.jirman.dev.hybridtv.cra.cz2026-06-13
  • –maintenance.hybridtv.cra.cz2026-05-27
  • –sso.cra.cz2026-05-03
  • –jirman.dev.hybridtv.cra.cz2026-01-13
  • –modry.dev.hybridtv.cra.cz2026-01-13

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

České Radiokomunikace operates as an essential telecommunications infrastructure provider in the Czech Republic, serving media, telecom, and IT sectors. Their business model revolves around offering infrastructure services such as broadcasting, data centers, cloud, and IoT solutions. The company targets enterprise and business customers requiring reliable and innovative infrastructure. The website indicates a strong market position with a focus on technological innovation and service quality. The use of multiple analytics and marketing tools suggests active digital marketing and customer engagement strategies. The absence of detailed financial or corporate structure data limits deeper business intelligence insights.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, cookie consent compliance, and use of reputable third-party analytics and marketing tools with privacy controls. The lack of explicit security headers and absence of published security policies or incident response contacts are gaps that could be addressed. No critical vulnerabilities or exposed sensitive data were found. GDPR compliance is supported by the cookie consent mechanism, but the missing privacy policy page reduces compliance completeness. Overall, the security culture appears professional but could benefit from enhanced transparency and formal security documentation.

Recommendations

  1. Implement and publish explicit security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to strengthen browser security.
  2. Publish a comprehensive privacy policy page clearly linked from the homepage to improve GDPR compliance and user trust.
  3. Provide visible and dedicated contact information for security incidents and abuse reporting to enhance incident response readiness.
  4. Conduct accessibility audits and implement improvements to meet higher accessibility standards for inclusivity.
  5. Consider publishing a vulnerability disclosure policy or security.txt file to encourage responsible security reporting and demonstrate security commitment.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
České Radiokomunikace a.s.
Description
Jsme poskytovatelem unikátní televizní, rozhlasové a internetové infrastruktury. Převádíme technologické trendy do inovativních mediálních, telekomunikačních a IT infrastrukturních služeb.
Key services
Television infrastructure, Radio infrastructure, Internet infrastructure, Data center services, Cloud services, IoT services
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Microsoft Clarity, Cookiebot CMP, Cloudflare (likely for CDN and security), Font loading with WOFF2, HTML5, CSS3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with granular controls
  • Use of Google Consent Mode to manage privacy
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Microsoft Clarity, Hotjar
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google AdSense, Facebook Ads
Tracking pixels
Microsoft Clarity, Hotjar, Cookiebot
Marketing tools
Leady behavioral tracking
Transparency
good

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Comprehensive cookie consent mechanism implemented with granular user controls.
  3. No explicit privacy policy or terms of service page detected in provided content.
  4. No direct contact emails or phone numbers found in the HTML content.
  5. WHOIS data unavailable, which is unusual for a domain of this nature.
  6. Use of multiple third-party analytics and marketing tools with proper consent.
  7. Website content is in Czech language targeting Czech Republic market.
  8. Strong branding consistency and professional design.
  9. No security.txt or vulnerability disclosure found.
  10. No visible security or incident response contact information.
Technical notes

Notes

The website uses a modern technology stack including Google Tag Manager, Microsoft Clarity, and Cookiebot for analytics and privacy management. Hosting appears to be supported by Cloudflare, providing CDN and security benefits. The site uses efficient font loading strategies and asynchronous script loading to optimize performance. SEO is well supported with proper meta tags and Open Graph data. Mobile optimization is good, ensuring usability across devices. However, the site lacks some advanced accessibility features and explicit security headers. Overall, the technical implementation is solid with room for incremental improvements in security and accessibility.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

Earlier scans of this domain

  1. 91/100Low19 findingsView report
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