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Security report for chance.cz

Chance.cz · Other · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view and Security headers.

Security score

73/100

Risk levelMedium

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

Chance.cz is a well-established Czech online gambling and sports betting platform with a domain age dating back to 1997, indicating a long-standing presence in the market. The website is currently protected by Cloudflare's security mechanisms, including a Turnstile captcha challenge, which blocks direct access to the main content. This security layer helps mitigate automated threats but limits content accessibility for analysis. The company provides clear contact information consistent with its brand identity, but no visible privacy, cookie, or terms of service policies were found in the accessible HTML content. The site heavily integrates third-party tracking and advertising technologies, including Google Analytics, Facebook Pixel, and various ad networks, indicating extensive user tracking.

Scanned

This is an earlier scan of chance.cz. View the latest report

NIS2 and GDPR posture

GDPR outside view
10/ 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

7 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 Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • 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';…

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

Keep watching chance.cz

This scan found 16 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.

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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
100
Security headers
55
Email security
85
DNS health
85
Network security
100
GDPR outside view
10
Average
73

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 chance.cz, from OffSeq Breach.

Total records
44,358
Employees
0
Customers
44,358
Third parties
0
Weak passwords
12%

27 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 chance.cz.

Select it in the checkout above.

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

Technical appendix

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

Business context

Business profile

Chance.cz operates in the online gambling sector, targeting adult users interested in sports betting. It is part of a broader ecosystem including related domains such as tipsport.cz and korunka.eu, suggesting a partnership or shared ownership structure. The business model focuses on online betting services, with a large market presence in the Czech Republic. The lack of visible legal and privacy documentation on the accessible page is a gap in compliance and user trust. The company appears to maintain consistent branding and provides customer support contact details, which supports business credibility.

Security posture

The website employs Cloudflare's WAF and Turnstile captcha, indicating a proactive approach to security and bot mitigation. However, the absence of visible security headers and explicit SSL/TLS configuration details in the HTML content limits the assessment of the full security posture. The extensive use of third-party tracking scripts without visible consent mechanisms raises privacy concerns and potential GDPR compliance issues. No direct vulnerabilities or exposed sensitive data were detected in the accessible content, but the blocking of main content restricts deeper security analysis.

Recommendations

  1. Implement and publicly display comprehensive privacy and cookie policies to enhance GDPR compliance and user trust.
  2. Add visible security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options to strengthen security posture.
  3. Improve website accessibility and SEO metadata to enhance user experience and search engine visibility.
  4. Provide clear user consent mechanisms for tracking and advertising scripts to comply with privacy regulations.
  5. Consider publishing a vulnerability disclosure policy or security.txt file to improve transparency and incident response readiness.
Site observations

Automated reading of the public site. Ratings are indicative.

Cloudflare detected. The HTML content is a Cloudflare security challenge page with Turnstile captcha, blocking direct access to main website content. These observations may be incomplete. For a fuller analysis, contact guard@offseq.com.

Business

Company
Chance.cz
Description
Chance.cz is a Czech betting and gambling website offering sports betting and related gaming services.
Key services
Sports betting, Online gambling
Content quality
poor
Branding
consistent

Technology

Stack
Cloudflare, Google Analytics, Facebook Pixel, Google Tag Manager, Turnstile Captcha
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
30/100
Good practices seen
  • Use of Cloudflare WAF and Turnstile captcha for bot protection

Analytics and tracking

Services
Google Analytics, Facebook Pixel, Bing Ads, Twitter Universal Website Tag
Tracking level
extensive
Privacy practices
poor

Advertising

Ad networks
Adform, imedia.cz
Tracking pixels
Facebook Pixel, Twitter Universal Website Tag, Bing Ads
Transparency
basic

Site quality

Design
poor
User experience
poor
Content relevance
poor
Navigation
poor
Professionalism
poor
Trustworthiness
moderate

Key observations

  1. Website content is blocked by Cloudflare WAF challenge page.
  2. No visible privacy, cookie, or terms of service policies found in the HTML content.
  3. Contact information is present and consistent with the brand.
  4. Heavy use of third-party tracking and advertising scripts.
  5. Website is a gambling platform targeting adult users.
  6. Technical SEO and accessibility features are minimal.
  7. Security headers and explicit SSL configuration details are not visible in the HTML content.
  8. Branding is consistent with related domains tipsport.cz and korunka.eu.
Technical notes

Notes

The website leverages Cloudflare for hosting and security, including bot protection via Turnstile captcha. It integrates multiple third-party analytics and advertising technologies, such as Google Analytics, Facebook Pixel, Bing Ads, and Twitter tracking scripts. The HTML content is minimal due to the security challenge page, limiting content quality and user experience. Mobile optimization and accessibility are basic, with no advanced frameworks or CMS detected from the provided content. Performance is moderate, but the security challenge may impact user access and SEO negatively. Technical debt is suggested by the lack of visible modern SEO and accessibility features.
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. 73/100Medium24 findingsView report
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