Skip to main content

Security report for jacks.nl

JACKS.NL | Online Casino & Sportsbook · Other · Netherlands

Medium risk. 3 critical or high findings in Security headers and GDPR outside view.

Security score

74/100

Risk levelMedium

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

JACKS.NL is a Dutch online gambling platform offering a wide range of casino games, live casino tables, and sports betting options. The website targets adult users interested in online gambling and sports wagering within the Netherlands. The business appears well-established with a domain age dating back to 1999, indicating a mature presence in the market. The platform emphasizes a safe and responsible gaming environment with 24/7 customer support, although explicit contact details and formal policies are not evident in the provided content. Technically, the website employs modern web technologies including Vue.js, Google Tag Manager, Microsoft Clarity, and Visual Website Optimizer for analytics and marketing optimization. The site is served over HTTPS with good SSL configuration but lacks DNSSEC. Performance and mobile optimization are adequate, with a professional design and good SEO practices. However, accessibility features are basic. From a security perspective, the site uses HTTPS and integrates cookie consent mechanisms via Cookiebot, but lacks visible security headers and published security policies or incident response contacts. No vulnerabilities or exposed sensitive data were detected in the HTML content. The WHOIS data aligns with the business focus, registered through a reputable Dutch registrar with no privacy protection, supporting legitimacy. Overall, the site is functional and professional but would benefit from enhanced transparency in privacy, terms, and security policies, as well as clearer contact information. The content is adult-oriented due to gambling services, requiring compliance with relevant regulations. Strategic improvements in security posture and compliance documentation are recommended to strengthen trust and regulatory adherence.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 100 · Medium
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

3 findings rated critical or high. Fix these first.

  1. 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';…

  2. GDPR outside view

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

    • 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

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

Keep watching jacks.nl

This scan found 20 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.

Billed monthly to your card. Cancel anytime. See sample alerts.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
30
Email security
75
DNS health
65
Network security
100
GDPR outside view
73
Average
74

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

JACKS.NL operates in the online gambling sector within the Netherlands, providing casino games, live dealer tables, and sports betting. The business model is based on online wagering and gaming services targeting adult customers. The company leverages partnerships with data and ad providers like Sportradar and Google. The platform's longevity since 1999 suggests stable operations and market experience. The absence of explicit business registration details or parent company information limits deeper corporate intelligence. The site’s marketing and analytics integrations indicate a focus on user engagement and conversion optimization. Growth potential exists in expanding transparency and compliance to enhance customer trust and regulatory standing.

Security posture

The security posture of JACKS.NL is moderate. The site enforces HTTPS, uses cookie consent management, and integrates reputable third-party analytics and marketing tools. However, it lacks visible security headers such as Content-Security-Policy or X-Frame-Options, and no published security or incident response policies were found. The absence of DNSSEC reduces DNS security. No direct contact channels for security incidents or vulnerability disclosures are provided. No evidence of exposed sensitive data or vulnerable libraries was found. To improve, the company should implement comprehensive security headers, publish incident response and vulnerability disclosure policies, and enable DNSSEC to enhance domain security.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  2. Publish clear and accessible privacy policy and terms of service pages to comply with legal requirements and improve transparency.
  3. Implement and configure security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Provide explicit contact information including security incident response contacts and data protection officer details if applicable.
  5. Establish a vulnerability disclosure program or security.txt file to encourage responsible reporting of security issues.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
JACKS.NL | Online Casino & Sportsbook
Description
JACKS.NL biedt spelers een breed aanbod van online kansspelen zoals gokkasten, videoslots en nog veel meer casinospellen. Neem plaats aan onze Live Casino tafels, waar onder leiding van Nederlandstalige Game Presenters, Roulette en Blackjack kan worden gespeeld. Ook is het mogelijk om op diverse sporten zoals voetbal, darts, tennis en F1 te wedden. Dit alles in een veilige, verantwoorde en betrouwbare speelomgeving met 24/7 klantenservice!
Key services
online casino games, live casino tables, sports betting
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Sportradar Tag Manager, Microsoft Clarity, Visual Website Optimizer (VWO), Zendesk
Frameworks
Vue.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • No DNSSEC
  • No exposed sensitive data detected in HTML

Analytics and tracking

Services
Google Analytics (via GTM), Microsoft Clarity, Visual Website Optimizer
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google Ads, Sportradar
Tracking pixels
Microsoft Clarity, Visual Website Optimizer
Marketing tools
Visual Website Optimizer, Zendesk
Transparency
basic

Site quality

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

Key observations

  1. Website is a Dutch online casino and sportsbook platform
  2. No explicit privacy policy or terms of service pages found in the provided HTML
  3. Cookie consent mechanism is implemented via Cookiebot
  4. Multiple third-party analytics and marketing tools are integrated
  5. No direct contact information (email, phone, address) found in the HTML content
  6. No explicit security or incident response policies published
  7. Domain is well aged and registered with a reputable registrar
  8. Content is adult-oriented due to gambling services
  9. No WAF or blocking detected, site content fully accessible
Technical notes

Notes

The website uses a modern front-end framework (Vue.js) and integrates multiple third-party services for analytics (Google Analytics via GTM, Microsoft Clarity), marketing optimization (Visual Website Optimizer), and customer support (Zendesk). The site is served over HTTPS with a valid SSL certificate but lacks DNSSEC. Performance is moderate with good mobile optimization and SEO metadata present. The site uses cookie consent management via Cookiebot, indicating awareness of privacy regulations. No CMS was explicitly detected. The technical stack is contemporary but could benefit from enhanced security configurations 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

Reviews of this site

Share your experience with jacks.nl. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review jacks.nl.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.