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Security report for prosperitaopen.cz

GTO Solutions s.r.o. · Media · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

50/100

Risk levelMedium

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

Tenis-Zive.cz is a Czech internet portal dedicated to tennis, providing detailed news, live scores, tournament programs, player rankings, and betting tips. The site targets tennis fans and sports bettors, offering content in Czech language with a focus on current tennis events and partnerships with licensed Czech betting companies. The business operates under GTO Solutions s.r.o., which is a recognized entity in the Czech media sector. The website demonstrates a consistent brand presence and professional content quality, positioning itself as a specialized media outlet in the sports betting and tennis niche. Technically, the website employs modern web technologies including JavaScript, Google Tag Manager, and Google Analytics for tracking and analytics. The site is served over HTTPS with good performance and mobile optimization. However, some security headers are missing, which could be improved to enhance security posture. The site includes comprehensive privacy and cookie policies with consent mechanisms, indicating good privacy compliance aligned with GDPR requirements. From a security perspective, the site shows a solid baseline with HTTPS and no visible vulnerabilities or exposed sensitive data. The absence of WHOIS data for the domain is a notable gap, reducing the ability to fully verify domain legitimacy and ownership. Despite this, the website content and business information appear trustworthy and professional. No adult or explicit content is present, making the site safe for general audiences. Overall, Tenis-Zive.cz is a well-maintained, content-rich sports media portal with good technical and privacy practices. The main risk lies in the lack of WHOIS transparency, which should be addressed to improve trustworthiness. Strategic recommendations include enhancing security headers, maintaining privacy compliance, and possibly publishing more detailed business contact information to strengthen credibility.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 100 · Critical
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

8 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  2. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

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Keep watching prosperitaopen.cz

This scan found 22 issues across 6 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

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  • 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
72
Security headers
45
Email security
75
DNS health
65
Network security
20
GDPR outside view
25
Average
50

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 prosperitaopen.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for prosperitaopen.cz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

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

Tenis-Zive.cz operates in the Czech Republic as a niche sports media portal focused on tennis and sports betting. Its competitive advantage lies in providing up-to-date tennis news, live results, and betting tips integrated with licensed Czech betting companies. The business model is primarily content-driven with affiliate marketing partnerships generating revenue. The target audience includes tennis enthusiasts and sports bettors seeking reliable information and betting bonuses. The company is part of GTO Solutions s.r.o., which supports a network of related sports and betting websites, indicating a strategic ecosystem approach. Growth indicators include active content updates and partnerships with major Czech betting operators. The site’s market position is that of a specialized, trusted tennis information source within the Czech sports media landscape.

Security posture

The website demonstrates a moderate to good security posture. It enforces HTTPS, uses deferred script loading, and avoids exposing sensitive data in the HTML source. However, it lacks several important security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options, which are recommended to mitigate common web attacks. No known vulnerabilities or malware indicators were detected. Privacy policies and cookie consent mechanisms are implemented, supporting GDPR compliance. Incident response and security contact information are not explicitly provided, which could be improved. Overall, the security maturity is adequate for a media portal but could benefit from enhanced header configurations and documented incident response processes.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen web security.
  2. Publish explicit security incident response contact information to improve transparency and readiness.
  3. Regularly audit third-party scripts and dependencies to prevent vulnerabilities.
  4. Enhance accessibility features to meet broader compliance standards.
  5. Address the lack of WHOIS data by ensuring domain registration information is publicly available and accurate to improve trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
GTO Solutions s.r.o.
Description
Internetový portál věnující se tenisu, nabízí aktuální tenisové zprávy, programy turnajů, live výsledky, žebříčky ATP a WTA, sázkové tipy a informace o sledování tenisu živě.
Key services
tenisové zprávy, programy a výsledky tenisových turnajů, žebříčky hráčů ATP a WTA, sázkové tipy a bonusové informace, informace o live streamingu tenisu
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Google Analytics, jQuery
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • deferred script loading
  • no exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Betano, Tipsport
Tracking pixels
DoubleClick
Transparency
good

Site quality

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

Key observations

  1. Website is a Czech tennis news and betting information portal.
  2. Content is rich, well-structured, and updated with current tennis events.
  3. No WHOIS data available, which is unusual and reduces domain trust.
  4. Website uses HTTPS and modern tracking technologies.
  5. Clear privacy and cookie policies with consent mechanisms are present.
  6. No signs of adult or explicit content; content is safe for general audiences.
  7. Advertising and affiliate links are clearly marked and relate to licensed Czech betting companies.
  8. No security headers detected in HTML source; potential area for improvement.
  9. No contact phone numbers or physical addresses explicitly listed.
  10. Social media presence limited to Facebook link.
Technical notes

Notes

The website uses a modern JavaScript-based front end with Google Tag Manager and Google Analytics for tracking. It loads CSS and JS assets with versioning for cache control and defers script execution to improve performance. The site is mobile-optimized with responsive design and includes meta viewport tags. SEO is supported by canonical links, meta descriptions, and structured data in JSON-LD format describing the organization. No CMS or hosting provider is explicitly identified. Performance is moderate with some room for optimization. Accessibility is basic but could be improved with ARIA roles and better keyboard navigation support. The absence of security headers is a technical risk. Overall, the technical infrastructure is solid but could benefit from enhanced security and accessibility improvements.
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

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