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Security report for mostbetczech.com

Venson Ltd · Other · Czech Republic

Medium risk. 9 critical or high findings in Email security, Security headers and 2 other checks.

Security score

58/100

Risk levelMedium

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

Mostbet Czech is an online gambling platform offering casino games and sports betting services primarily targeting Czech players. The website is professionally designed, mobile-optimized, and provides a broad range of games and betting options, supported by a Curacao eGaming license. The technical infrastructure is modern, leveraging WordPress with SEO and caching plugins, and hosted behind Cloudflare DNS. Security posture is adequate with HTTPS and domain transfer protection, but lacks DNSSEC and some security headers. Privacy compliance is weak due to missing privacy and cookie policies. Customer support is accessible via email and contact forms, with no phone or social media contacts explicitly provided. Overall, the platform is credible and functional but could improve compliance and security transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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

9 findings 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.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

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

  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 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';…

  3. GDPR outside view

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

    • 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

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

Keep watching mostbetczech.com

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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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
65
Security headers
15
Email security
60
DNS health
75
Network security
100
GDPR outside view
35
Average
58

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

Technical appendix

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

Business context

Business profile

Mostbet Czech operates in the online gambling sector with a focus on the Czech market. It benefits from a well-established brand since 2009 under Venson Ltd. The business model combines casino gaming and sports betting with mobile app support and promotional bonuses. The platform differentiates itself by offering a wide variety of sports including niche options and a comprehensive esports section. Payment methods are diverse, including cryptocurrencies. The company maintains partnerships with licensing authorities and responsible gambling organizations. Growth potential exists through mobile optimization and live betting features. The lack of explicit privacy and cookie policies may pose regulatory risks.

Security posture

The website enforces HTTPS and uses Cloudflare DNS with clientTransferProhibited domain status, indicating good baseline security. However, DNSSEC is not enabled, and key security headers like Content Security Policy are missing. No vulnerability disclosure or security.txt file is present, limiting transparency for security researchers. Forms collect user data but no explicit security measures or privacy notices are visible. The absence of cookie consent mechanisms and privacy policy reduces GDPR compliance. Overall, security maturity is moderate with room for improvement in headers, DNS security, and compliance documentation.

Recommendations

  1. Publish comprehensive privacy and cookie policies with GDPR compliance details.
  2. Implement DNSSEC to enhance domain security.
  3. Add Content Security Policy and other security headers (X-Frame-Options, Referrer-Policy).
  4. Create and publish a security.txt file for vulnerability disclosure.
  5. Introduce cookie consent mechanisms to comply with privacy regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Venson Ltd
Description
Mostbet Czech is an established online casino and sports betting platform targeting Czech players, offering a wide range of casino games, sports betting options, bonuses, and mobile optimization.
Key services
Online casino games, Sports betting, Live casino, Mobile app, Bonuses and promotions
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Yoast SEO, WP Rocket, jQuery, Font Awesome, Google Fonts
Platforms
Web, iOS, Android
Performance
fast
Mobile
excellent
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • Use of Cloudflare DNS

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Marketing tools
Yoast SEO, WP Rocket
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professionally presented and targeted at Czech gambling audience.
  3. No explicit privacy or cookie policies found, which is a compliance gap.
  4. WHOIS data is transparent and consistent with business claims.
  5. Security headers and DNSSEC could be improved for enhanced security.
  6. Mobile optimization and SEO are well implemented.
  7. Customer support contact is available via email and contact form.
  8. No phone numbers or social media links explicitly found.
  9. Use of modern WordPress plugins and caching for performance.
Technical notes

Notes

The website is built on WordPress CMS using popular plugins like Yoast SEO and WP Rocket for SEO and performance optimization. It uses jQuery and Font Awesome for UI elements and Google Fonts for typography. Hosting is supported by Cloudflare DNS, improving DNS resolution and security. The site is well optimized for mobile devices and loads quickly. Accessibility features are basic but present. SEO metadata and structured data (JSON-LD) are implemented correctly, enhancing search engine visibility. There is no evidence of outdated or vulnerable libraries. Overall, the technical implementation is modern and efficient with minor gaps in security headers and privacy compliance.
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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