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Security report for 711.nl

711 Online Casino · Other · Netherlands

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

67/100

Risk levelMedium

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

711 Online Casino operates as a Dutch online gambling platform offering casino games and sports betting services. The website targets adult users in the Netherlands, promoting player bonuses and emphasizing fairness and high RTP (Return to Player) rates. The business positions itself as a popular and trustworthy online casino within the Dutch market. Technically, the website employs modern web technologies including JavaScript frameworks (likely Vue.js), Google Tag Manager for analytics, and third-party marketing and support tools such as Zendesk and XtremePush. The site is mobile-optimized with good SEO practices but lacks explicit privacy and terms of service pages in the provided content. Security posture is moderate with HTTPS enforced and some security best practices observed, though some security headers are missing or not explicitly detected. No WAF or blocking mechanisms were detected, allowing full content access. Overall, the domain registration data aligns well with the website's business claims, supporting legitimacy. The site is rated NSFW due to its gambling content and adult audience targeting.

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

5 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

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching 711.nl

This scan found 24 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

€39.90one-time

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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
57
Security headers
30
Email security
75
DNS health
65
Network security
100
GDPR outside view
73
Average
67

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

The company operates in the online gambling sector, focusing on casino games and sports betting for the Dutch market. Its business model revolves around attracting new players with promotional bonuses and maintaining player engagement through a variety of casino games. The market position is that of a popular online casino with a focus on fairness and high RTP. Revenue streams likely include player deposits, betting margins, and possibly affiliate partnerships. The target customer segment is adults interested in online gambling within the Netherlands. The website uses a combination of marketing tools and analytics to optimize user acquisition and retention. No explicit partnerships or subsidiaries were identified in the content. The business demonstrates consistent branding and professional presentation, though lacks visible detailed corporate information or certifications in the analyzed content.

Security posture

The website enforces HTTPS and uses some security best practices such as CSRF token placeholders and third-party security/privacy SDKs. However, explicit security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options were not detected in the provided content, representing an area for improvement. No exposed sensitive data or vulnerable libraries were identified. The site uses external scripts from reputable domains but should regularly audit these for security. Incident response and vulnerability disclosure information are not present, indicating potential gaps in security transparency. Overall, the security posture is moderate but could be enhanced by implementing missing headers and publishing security policies.

Recommendations

  1. Implement and enforce a comprehensive Content-Security-Policy header to mitigate XSS and related attacks.
  2. Add X-Frame-Options and X-Content-Type-Options headers to improve protection against clickjacking and MIME sniffing.
  3. Publish explicit privacy policy and terms of service pages accessible from the website footer or main navigation.
  4. Populate and utilize CSRF tokens properly in forms to prevent cross-site request forgery.
  5. Establish and publicize a vulnerability disclosure policy and incident response contact to improve security transparency and readiness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
711 Online Casino
Description
De populairste online casinospellen vind je bij 711 Sport & Casino. 100% eerlijkheid gegarandeerd. Waag jij je kans? Veel plezier, en vooral: veel geluk!
Key services
Online casino games, Sports betting, Player bonuses and promotions
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, WebPush SDK, Zendesk, CSS3, HTML5
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • No visible exposed sensitive data
  • Use of security tokens (csrf-token meta tag present but empty)
  • Use of third-party security and privacy SDKs

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google Ads (AW-301039102)
Marketing tools
XtremePush, 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 professional online casino platform targeting Dutch users.
  2. Content is primarily in Dutch language.
  3. No explicit privacy policy or terms of service found in the provided HTML content.
  4. Cookie consent mechanism is present via scripts but no explicit cookie policy page found.
  5. No direct contact emails or phone numbers found in the HTML content.
  6. Use of modern web technologies and third-party marketing and support tools.
  7. Security headers partially present; room for improvement.
  8. No signs of WAF blocking or content restrictions.
  9. Content safety rating is NSFW due to gambling content and adult audience targeting.
Technical notes

Notes

The website uses modern front-end technologies, likely Vue.js, combined with CSS3 and HTML5 standards. It integrates Google Tag Manager for analytics and uses third-party SDKs for push notifications and customer support (Zendesk). The site is mobile-optimized and includes SEO-friendly meta tags and structured data (JSON-LD) for organization and website schema. Performance is moderate, with asynchronous loading of scripts to improve page load times. Accessibility features are basic but present. Hosting provider details were not explicitly found. The technical implementation is solid but could benefit from enhanced security headers and more comprehensive privacy and compliance documentation.
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. 70/100Medium31 findingsView report
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