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Security report for dnb.co.uk

Dun & Bradstreet Limited · Finance · United Kingdom

Partial score · DNS & email only

66/100

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

Dun & Bradstreet Limited operates a comprehensive business data and analytics platform focused on helping enterprises manage risk, drive growth, and optimize performance. The company leverages nearly two centuries of expertise and holds a strong market position in the finance sector, offering solutions tailored for enterprise, small business, and public sector clients. Their website reflects a mature digital presence with a focus on data-driven business insights and credit risk management services. Technically, the website is built on Adobe Experience Manager, integrating modern technologies such as Google Tag Manager, Google reCAPTCHA Enterprise, and TrustArc for consent management. While the site demonstrates good mobile optimization and SEO practices, some frontend chunk loading errors were detected, which could impact user experience and should be addressed. From a security perspective, the site enforces HTTPS, uses advanced bot protection, and maintains ISO certifications including ISO 27001 and ISO 27701, indicating a strong commitment to information security and privacy. However, the absence of a public vulnerability disclosure policy and incident response contact details suggests areas for improvement in transparency and security readiness. Overall, Dun & Bradstreet's website is professional, trustworthy, and compliant with GDPR and other regulations, though technical refinements and enhanced security disclosures would further strengthen their digital security posture.

Scanned

This is an earlier scan of dnb.co.uk. View the latest report

NIS2 and GDPR posture

GDPR outside view
95/ 100 · Low
Checks completed
6of 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

1 finding rated critical or high. Fix these first.

  1. 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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

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

Keep watching dnb.co.uk

This scan found 12 issues across 5 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

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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
0
Email security
65
DNS health
70
Network security
100
GDPR outside view
95
Average
66

Not counted

  • Security headers: did not complete in this scan.
  • 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

Dun & Bradstreet is positioned as a leading provider of business data and analytics, serving a broad spectrum of clients from large enterprises to small businesses and public sector organizations. Their business model revolves around delivering actionable intelligence for credit risk assessment, supply chain navigation, and sales and marketing optimization. The company benefits from a long-standing brand reputation and regulatory compliance, including FCA authorization in the UK. Their partnership ecosystem includes global networks and digital platforms, supporting a diversified revenue stream. The website content and structure reflect a focus on enterprise clients, with clear segmentation and dedicated solutions. Growth indicators include active content marketing via blogs and insights, as well as integration of advanced analytics and consent management technologies.

Security posture

The website demonstrates a mature security posture with HTTPS enforcement, use of Google reCAPTCHA Enterprise for bot mitigation, and ISO certifications covering environmental and information security management. The integration of TrustArc consent management indicates compliance with privacy regulations and user consent best practices. However, visible frontend errors and lack of a published security.txt or vulnerability disclosure policy represent gaps in security transparency and operational readiness. No exposed sensitive data or vulnerable libraries were detected in the HTML content. The security score is strong but could be improved by addressing frontend stability and publishing incident response contacts.

Recommendations

  1. Resolve frontend chunk loading errors to improve user experience and reduce potential security risks.
  2. Publish a security.txt file and a clear vulnerability disclosure policy to enhance transparency and encourage responsible reporting.
  3. Add explicit incident response contact channels such as security@ or abuse@ email addresses.
  4. Enhance website accessibility to meet higher standards and improve inclusivity.
  5. Conduct regular audits of third-party scripts and dependencies to mitigate supply chain risks.

Contact details published on the site

Addresses
Legal name
Dun & Bradstreet Limited
Registration number
160043
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Dun & Bradstreet Limited
Description
Dun & Bradstreet helps companies large and small drive growth, manage risk, and strengthen the performance of their business.
Key services
Enterprise Solutions, Small Business Solutions, Public Sector Solutions, D-U-N-S Number, Business Data and Analytics
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Adobe Helix RUM, Google Tag Manager, Google reCAPTCHA Enterprise, TrustArc Consent Management
Frameworks
Adobe Experience Manager (AEM)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • Use of Google reCAPTCHA Enterprise
  • Consent management with TrustArc
  • HTTPS enforced
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
TrustArc Consent Management
Transparency
good

Site quality

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

Key observations

  1. Website uses modern consent management with TrustArc
  2. Multiple ISO certifications and FCA regulation stated
  3. Presence of Google reCAPTCHA Enterprise for bot protection
  4. Some frontend loading errors visible which may affect UX
  5. Comprehensive footer with business and legal links
  6. Social media presence on LinkedIn, Facebook, and X (Twitter)
  7. No visible contact emails in HTML content
  8. Phone contact number clearly displayed with context
  9. No explicit security.txt or vulnerability disclosure page found
Technical notes

Notes

The website is built on Adobe Experience Manager, leveraging modern JavaScript libraries and asynchronous loading for performance. It uses Google Tag Manager for analytics and marketing, Google reCAPTCHA Enterprise for security, and TrustArc for consent management. The site includes canonical URLs and meta tags for SEO. Some performance issues are indicated by chunk loading errors, which may affect page rendering and user experience. Mobile optimization is good, but accessibility features are basic. Hosting provider details are not explicitly identified. Overall, the technical infrastructure supports a robust enterprise-grade website but requires attention to frontend stability and accessibility enhancements.
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. 62/100Medium21 findings · partial scanView report
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