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Security report for bisnode.cz

Dun & Bradstreet · Finance · Czech Republic

Partial score · DNS & email only

63/100

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

Dun & Bradstreet is a globally recognized leader in business data and analytics, offering comprehensive solutions to help organizations manage risk, control costs, and drive growth. The Czech Republic localized website presents a professional and content-rich experience targeting enterprises and small to medium businesses. The company leverages modern web technologies including React and Adobe Experience Manager, with integrated consent management and bot protection mechanisms. Security posture is moderate with room for improvement in security headers and explicit incident response disclosures. Overall, the website reflects a mature digital presence aligned with the company's market position and business model.

Scanned

NIS2 and GDPR posture

GDPR outside view
65/ 100 · Medium
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

4 findings 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

  2. GDPR outside view

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

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, LinkedIn

      What to do: Document all third-party data sharing in your privacy policy

  3. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Potential Subdomain Takeover

      Subdomain dev.dnb.com points to unregistered service dbradstreet2-dev-1037007542.us-east-1.elb.amazonaws.com

      What to do: Remove or fix CNAME record to prevent subdomain takeover

      • WSTG-CONF-10
      • NIS2 21(2)(i)
      • IR 2024/2690 12.4: Implementing Regulation (EU) 2024/2690, Annex point 12.4: Asset inventory
      • NIST CM-8: NIST SP 800-53 Rev. 5 CM-8: System Component Inventory

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

Keep watching bisnode.cz

This scan found 10 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
85
DNS health
65
Network security
100
GDPR outside view
65
Average
63

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

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 bisnode.cz, from OffSeq Breach.

Total records
41
Employees
0
Customers
41
Third parties
0
Weak passwords
15%

4 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 bisnode.cz.

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

The company operates in the finance and technology sectors, providing data-driven insights and services such as risk management, marketing analytics, and D-U-N-S number provisioning. The website content is tailored to Czech businesses, emphasizing local market data and solutions. Dun & Bradstreet's nearly 200-year history and global footprint position it as a trusted partner. The presence of social media links and career portals indicates active engagement and growth orientation. The business model is subscription and service-based, focusing on data products and analytics solutions.

Security posture

The website employs HTTPS and integrates Google reCAPTCHA Enterprise for bot mitigation, alongside TrustArc for cookie consent management, indicating awareness of privacy and security best practices. However, the absence of visible security headers and lack of published security or incident response policies reduce the overall security maturity. No vulnerabilities or exposed sensitive data were detected in the provided content. The site would benefit from publishing a security.txt file and enhancing transparency around security frameworks and incident response contacts.

Recommendations

  1. Implement and verify comprehensive HTTP security headers (CSP, HSTS, X-Frame-Options).
  2. Publish a dedicated security policy and incident response contact information.
  3. Add a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Conduct accessibility audits to improve compliance and user experience.
  5. Regularly review and update privacy and cookie policies to maintain GDPR compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Dun & Bradstreet
Description
Dun & Bradstreet je vaším partnerem pro data a analytiku. Přijímejte optimální rozhodnutí napříč celým životním cyklem zákazníka díky našemu přístupu Smart Data.
Key services
Business risk management, Data solutions for cost control, Business growth and marketing insights, D-U-N-S number services
Content quality
excellent
Branding
consistent

Technology

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

Security

Observed score
70/100
Good practices seen
  • Use of Google reCAPTCHA Enterprise for bot protection
  • Consent management via TrustArc

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
TrustArc
Marketing tools
TrustArc Consent Management
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content in Czech language
  2. Professional and consistent branding throughout
  3. Comprehensive product and service descriptions
  4. Use of modern web technologies and consent management
  5. No visible security policy or incident response contact information
  6. WHOIS data unavailable, likely due to privacy protection
  7. Strong presence on social media platforms
  8. Cookie consent and privacy policies are present and GDPR compliant
Technical notes

Notes

The website is built on Adobe Experience Manager CMS with React-based front-end components, leveraging modern JavaScript chunk loading and asynchronous script loading for performance. Google Tag Manager and TrustArc are used for analytics and consent management respectively. The site is mobile optimized with responsive design and uses Adobe Helix RUM for real user monitoring. Performance is moderate, with potential improvements in loading speed and accessibility. Hosting provider details are not explicitly identified. Overall, the technical infrastructure supports a professional and scalable digital presence.
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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