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Security report for dnb.nl

De Nederlandsche Bank · Finance · Netherlands

Low risk. 2 critical or high findings in Security headers.

Security score

77/100

Risk levelLow

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

De Nederlandsche Bank (DNB) operates as the central bank of the Netherlands, focusing on maintaining financial stability, supervising financial institutions, and ensuring effective payment systems. The website serves a broad audience including financial sector entities and the general public, providing comprehensive information and services related to banking supervision, monetary policy, and financial safety. The site is well-positioned as a key national and European financial authority with a strong market presence and trustworthiness. Technically, the website employs modern web technologies such as jQuery and Angular, with good mobile optimization and accessibility features. Security posture is strong with HTTPS enforcement and script integrity checks, though explicit security headers and vulnerability disclosure mechanisms are not evident. Overall, the site demonstrates a high level of professionalism and trust, though improvements in privacy compliance such as cookie consent and incident response transparency are recommended.

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 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 dnb.nl

This scan found 19 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

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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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
95
Security headers
30
Email security
85
DNS health
70
Network security
100
GDPR outside view
83
Average
77

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 dnb.nl, from OffSeq Breach.

Total records
103
Employees
0
Customers
61
Third parties
42
Weak passwords
8%

7 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for dnb.nl.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

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

Business context

Business profile

DNB holds a critical role in the Dutch financial ecosystem as a government entity and central bank. Its business model revolves around regulatory oversight, financial stability, and public service rather than commercial revenue generation. The website reflects this with extensive sector-specific content, regulatory publications, and public warnings about fraud. The organization maintains active social media channels to engage stakeholders and disseminate information. The absence of commercial advertising and affiliate programs aligns with its public institution status. The site’s comprehensive navigation and sector-specific resources indicate a mature digital presence supporting diverse stakeholder needs.

Security posture

The website demonstrates a mature security posture with mandatory HTTPS, use of script integrity attributes, and warnings about phishing and fraud, indicating awareness of security risks. However, the lack of explicit security headers such as X-Frame-Options and absence of a public vulnerability disclosure or security.txt file suggest areas for enhancement. No vulnerabilities or exposed sensitive data were detected in the content. Incident response contact information is not publicly visible, which could be improved to enhance transparency and readiness. Overall, the security measures are robust but could benefit from formalized disclosure and response mechanisms.

Recommendations

  1. Implement a visible cookie consent banner to comply fully with GDPR requirements.
  2. Publish a security.txt file or vulnerability disclosure policy to facilitate responsible reporting.
  3. Add explicit security headers like X-Frame-Options and X-Content-Type-Options to strengthen browser security.
  4. Provide clear incident response contact information to improve transparency and trust.
  5. Regularly review and update privacy and security policies to maintain compliance and user confidence.

Contact details published on the site

Addresses
Legal name
De Nederlandsche Bank
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
De Nederlandsche Bank
Description
DNB zet zich in voor een stabiel financieel stelsel: stabiele prijzen, solide financiële instellingen en een goed werkend betalingsverkeer.
Key services
financial stability oversight, payment systems management, financial institution supervision, public information and education
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery 3.7.1, ReadSpeaker webReader, SVG icons
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No visible exposed sensitive data
  • Use of integrity attribute on jQuery script
  • Warnings about phishing and fraud on site

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is professionally designed and maintained by a national central bank
  2. Clear and comprehensive navigation structure with extensive content
  3. Strong trust signals including official contact info and warnings about fraud
  4. No signs of advertising or tracking beyond essential scripts
  5. No visible privacy or security policy pages explicitly linked in main navigation
  6. No cookie consent banner detected despite GDPR relevance
  7. Use of modern web technologies and accessibility features
Technical notes

Notes

The website uses a modern technology stack including jQuery 3.7.1 and Angular 17.3.3 for dynamic features such as search autosuggest. It integrates third-party services like ReadSpeaker for accessibility. The site is mobile optimized with responsive design and good accessibility features such as skip links and ARIA labels. Performance appears moderate with external script dependencies. No CMS is explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not disclosed. The site’s SEO is supported by comprehensive meta tags and Open Graph data. Technical risks are minimal, but the absence of some security headers and privacy mechanisms represent areas for technical improvement.
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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