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Security report for onlinekasinocz.cz

Other · Czech Republic

Medium risk. 10 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

56/100

Risk levelMedium

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

The website www.onlinekasinocz.cz is a Czech-language platform dedicated to providing comprehensive reviews, ratings, and information about online casinos available to Czech players. It serves as an affiliate marketing site, guiding users to reputable international and Czech-licensed online casinos. The site features detailed content on casino games, bonuses, payment methods, legal regulations, and player protection measures in the Czech Republic. The business targets adult Czech gambling enthusiasts seeking trustworthy casino options and related information. Technically, the site employs modern web standards including responsive design, lazy loading images, and optimized CSS/JS delivery. It is accessible on both desktop and mobile platforms with good SEO and user experience. However, no CMS or hosting provider details were identified. The site uses HTTPS with a good SSL configuration but lacks some advanced security headers. From a security and compliance perspective, the site does not expose sensitive data and includes a cookie consent mechanism, but lacks explicit privacy policy, terms of service, or security incident response information. WHOIS data is unavailable, which reduces trust in domain legitimacy, though the site content and structure suggest a professional operation. No WAF or blocking mechanisms were detected, and no suspicious domains or malware indicators were found. Overall, the site is a well-structured, content-rich resource for Czech online casino players but would benefit from improved transparency in privacy, contact information, and security policies to enhance trust and compliance.

Scanned

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

10 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

  2. 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.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  3. 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 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';…

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

Keep watching onlinekasinocz.cz

This scan found 25 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

€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

Email alerts on material changes and an exportable JSON history of every change.

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Full report

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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
75
Security headers
15
Email security
60
DNS health
75
Network security
100
GDPR outside view
10
Average
56

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 onlinekasinocz.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for onlinekasinocz.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

The platform operates in the online gambling affiliate niche, focusing on the Czech market. It leverages expert reviews and user feedback to rank and recommend online casinos, including international operators accepting Czech players. The business model relies on affiliate commissions from casino referrals. The site positions itself as a trusted guide with detailed, regularly updated content and a strong focus on legal compliance and player protection in the Czech Republic. Its competitive advantage lies in localized content, expert insights, and comprehensive casino listings. Growth potential exists through expanding casino partnerships and enhancing user engagement via newsletters and social media. Revenue streams likely include affiliate fees and advertising. The target customers are adult Czech players interested in legal and safe online gambling. The site maintains a consistent brand and user experience, fostering trust through expert authorship and detailed analysis. Partnerships with major casino brands are evident through affiliate links. Strategic observations suggest focusing on increasing transparency, adding direct contact channels, and formalizing privacy and security policies to strengthen market credibility.

Security posture

The website demonstrates a moderate to good security posture. HTTPS is enforced, ensuring encrypted communications. No sensitive information is exposed in the HTML content. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and HSTS reduces protection against common web attacks like clickjacking and XSS. There is no visible security or incident response policy, nor a vulnerability disclosure program. Cookie consent is implemented, indicating some privacy awareness. No known vulnerabilities or malware were detected in the content. The lack of WHOIS data and registrant information is a concern for domain legitimacy and trust. Overall, the site is secure for users but could improve by adopting additional security headers, publishing privacy and security policies, and providing clear incident response contacts.

Recommendations

  1. Publish a comprehensive privacy policy page detailing data collection, usage, and user rights to improve GDPR compliance.
  2. Implement additional HTTP security headers such as Content-Security-Policy, X-Frame-Options, and HSTS to enhance protection against web attacks.
  3. Provide clear and verified contact information including company emails and phone numbers to improve business credibility and user trust.
  4. Establish and publish an incident response policy and vulnerability disclosure program to demonstrate security maturity.
  5. Investigate and resolve the lack of WHOIS registrant data to improve domain legitimacy and reduce suspicion.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
Seznam Nejlepších Online Kasin v České republice: Mezinárodní i s Ceskou License. Hodnocení od skutečných odborníků na kasina na internetu. Doporučení a recenze online casin pro české hráče.
Key services
Online casino reviews, Casino bonus information, Casino game guides, Affiliate referral links to casinos
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, WebP images, Lazy loading images, Responsive design
Platforms
Desktop, Mobile
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content in Czech language.
  2. No WHOIS data available, indicating possible privacy protection or domain registration issues.
  3. Website focuses on online casino reviews and affiliate marketing.
  4. No direct contact emails or phone numbers found on main page.
  5. Cookie consent banner present with consent mechanism.
  6. No explicit privacy policy or terms of service pages detected.
  7. No security.txt or vulnerability disclosure information found.
  8. No social media links explicitly found in main content.
  9. Website uses modern web technologies and responsive design.
  10. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website uses modern front-end technologies including HTML5, CSS3, and JavaScript with lazy loading and responsive design for mobile optimization. It serves WebP images for performance. The CSS is minified and asynchronously loaded to improve page load times. No CMS or server-side technologies were identified from the HTML source. The site is hosted with HTTPS enabled and uses canonical URLs and Open Graph metadata for SEO and social sharing. Accessibility features are basic but present. Performance is moderate with room for optimization. No third-party analytics or tracking scripts were detected in the provided content, indicating minimal user tracking.
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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