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Security report for onetime.nl

Onetime BV · Media · Netherlands

Low risk. 2 critical or high findings in Security headers and SSL/TLS.

Security score

78/100

Risk levelLow

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

Onetime BV operates Onetime.nl, a leading Dutch media platform focused on money-related topics, particularly gambling, online casinos, and cryptocurrency. The website serves as a comprehensive resource offering news, reviews, and a vibrant community forum, positioning itself as the largest active money and gambling community in the Netherlands. The business model leverages affiliate marketing partnerships with online casinos and bookmakers, providing users with informative content and promotional offers. The company maintains transparency with clear affiliate disclosures and provides detailed company information including registration details and physical address.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
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

2 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 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. 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 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 onetime.nl

This scan found 18 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
75
Security headers
70
Email security
70
DNS health
70
Network security
100
GDPR outside view
83
Average
78

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

Onetime.nl targets Dutch-speaking adults interested in gambling and financial topics, offering a mix of editorial content, community engagement, and affiliate marketing. The platform's competitive advantage lies in its large, active community and comprehensive coverage of gambling and crypto topics. Revenue streams primarily come from affiliate commissions linked to online casino and bookmaker referrals. The company demonstrates strong market positioning with certifications such as KVA approval and maintains an active presence on major social media platforms. Strategic partnerships with gambling operators enhance its ecosystem and user engagement.

Security posture

The website exhibits a mature security posture with HTTPS enforced, cookie consent mechanisms, and age verification modals to restrict access to adults. While basic security headers are present, there is room for improvement by adding advanced headers like Content-Security-Policy and X-Frame-Options. No exposed sensitive data or vulnerable libraries were detected. However, the absence of a published security policy or incident response contact limits transparency in security incident handling. Overall, the site follows good security practices appropriate for a media and affiliate platform in the gambling sector.

Recommendations

  1. Implement additional security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish a security policy and provide clear incident response contact information to improve transparency and trust.
  3. Introduce a security.txt file to facilitate responsible vulnerability disclosure.
  4. Enhance accessibility features to improve compliance and user experience for all visitors.
  5. Continue monitoring and updating third-party libraries and scripts to mitigate potential vulnerabilities.

Contact details published on the site

Addresses
Legal name
Onetime BV
Registration number
64817857
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Onetime BV
Description
Onetime.nl is dé website als het gaat over geld. Lees onze informatieve artikelen en maak deel uit van de meest actieve geld community van Nederland
Key services
Informative articles on money, gambling, crypto, Community forum, Affiliate partnerships with online casinos and bookmakers, News updates, Reviews
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.6.0, FancyApps UI 4.0, AWeber forms, Google Tag Manager, Quantcast, Cookiebot, Lotame, Bootstrap (implied by classes and offcanvas usage)
Frameworks
Umbraco CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • Age verification modal for 18+ and 24+
  • Affiliate disclosures present

Analytics and tracking

Services
Google Tag Manager, Quantcast
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Quantcast, Lotame
Tracking pixels
Cookiebot session tracker
Marketing tools
AWeber
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Strong focus on gambling and financial content for Dutch adults.
  3. Comprehensive privacy and cookie policies with consent mechanisms.
  4. Active social media presence across multiple platforms.
  5. Affiliate marketing is clearly disclosed.
  6. Age verification modal enforces adult access.
  7. No visible security vulnerabilities or exposed sensitive data.
  8. Use of modern JavaScript libraries and CMS (Umbraco).
  9. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website is built on the Umbraco CMS platform and utilizes modern JavaScript libraries including jQuery 3.6.0 and FancyApps UI 4.0. It integrates multiple third-party services such as Google Tag Manager, Quantcast, Cookiebot, Lotame, and AWeber for analytics, consent management, marketing, and email campaigns. The site demonstrates good mobile optimization and SEO practices with proper meta tags and structured navigation. Performance is moderate, with potential for improvement by optimizing external resource loading. The technical infrastructure supports a professional and engaging user experience aligned with the business goals.
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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