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Security report for cnb.cz

Česká národní banka · Finance · Czech Republic

Medium risk. 6 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

67/100

Risk levelMedium

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

Česká národní banka (ČNB) is the central bank of the Czech Republic, serving as the primary authority for monetary policy, financial market supervision, issuance of currency, and crisis resolution. The website reflects its authoritative role with comprehensive information on monetary policy, financial stability, regulatory oversight, statistics, and public education. It targets a broad audience including the general public, financial institutions, media, and researchers. The business model is governmental and regulatory, positioning ČNB as a key institution in the Czech financial ecosystem. Technically, the website is built on the OpenCms platform, utilizing modern web technologies such as jQuery, Google Analytics, and Google reCAPTCHA Enterprise for security and analytics. The site is well-structured, mobile-optimized, and accessible, with clear navigation and professional design. Security posture is strong with HTTPS enforced, cookie consent mechanisms, and bot protection, though explicit security headers could be more visible. The security evaluation shows no critical vulnerabilities or exposed sensitive data. Privacy compliance is robust with detailed privacy and cookie policies, GDPR adherence, and user consent management. Business credibility is high, supported by clear contact information, official branding, and trust signals such as social media presence and legal disclosures. Overall, the website is a secure, professional, and trustworthy digital presence for the Czech National Bank, effectively supporting its mission and stakeholder engagement.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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

6 findings rated critical or high. Fix these first.

  1. GDPR outside view

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

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • 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, Twitter, LinkedIn, YouTube, Google Ads

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

  2. 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';…

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Keep watching cnb.cz

This scan found 22 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.

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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
77
Security headers
30
Email security
70
DNS health
85
Network security
100
GDPR outside view
40
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

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 cnb.cz, from OffSeq Breach.

Total records
159
Employees
0
Customers
151
Third parties
8
Weak passwords
14%

8 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 cnb.cz.

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

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Technical appendix

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

Business context

Business profile

ČNB holds a dominant position as the sole central bank and financial regulator in the Czech Republic. Its competitive advantage lies in its constitutional mandate and comprehensive regulatory powers. Revenue streams are governmental and regulatory in nature, not commercial. The target customer segments include financial institutions, government bodies, investors, and the general public. Growth indicators are tied to economic conditions and regulatory developments. The partnership ecosystem includes international financial institutions and regulatory bodies. Strategic observations highlight a focus on transparency, public education, and digital modernization to enhance service delivery and regulatory effectiveness.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, use of Google reCAPTCHA Enterprise to mitigate automated threats, and a detailed cookie consent mechanism supporting GDPR compliance. No exposed sensitive data or vulnerable libraries were detected. However, explicit security headers like X-Frame-Options and X-Content-Type-Options are not clearly visible in the provided data and should be verified. Incident response and vulnerability disclosure information are not publicly evident, which is common for governmental sites but could be improved for transparency. Overall, the security culture appears strong with room for minor enhancements.

Recommendations

  1. Implement and explicitly verify security headers such as X-Frame-Options and X-Content-Type-Options to enhance protection against clickjacking and MIME sniffing.
  2. Publish a clear vulnerability disclosure policy or security.txt file to encourage responsible reporting of security issues.
  3. Provide publicly accessible incident response contact information to improve transparency and trust.
  4. Regularly audit third-party scripts and dependencies to ensure no vulnerabilities are introduced.
  5. Continue enhancing privacy compliance by updating cookie policies and consent mechanisms as regulations evolve.

Contact details published on the site

Addresses
Legal name
Česká národní banka
Registration number
IČO 48136450
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Česká národní banka
Description
Česká národní banka (ČNB) is the central bank of the Czech Republic, responsible for monetary policy, financial market supervision, crisis resolution, issuance of banknotes and coins, and maintaining financial stability. It operates under the Constitution of the Czech Republic and the Act No. 6/1993 Coll., on the Czech National Bank.
Key services
Monetary policy implementation, Financial market supervision and regulation, Issuance of Czech banknotes and coins, Financial stability and crisis resolution, Statistical data publication, Public financial education
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Google Analytics, Google reCAPTCHA Enterprise, Google Charts
Frameworks
OpenCms (implied by resource paths)
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA Enterprise for bot protection
  • Cookie consent mechanism with detailed cookie categories
  • No exposed sensitive data in HTML
  • Secure input fields with input validation

Analytics and tracking

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

Advertising

Ad networks
doubleclick.net
Transparency
good

Site quality

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

Key observations

  1. Official Czech National Bank website with comprehensive financial and regulatory information
  2. Content is in Czech with English language option available
  3. Strong presence of legal, privacy, and cookie policies with consent mechanisms
  4. Multiple social media channels linked for transparency and outreach
  5. Use of modern web technologies and CMS (OpenCms)
  6. No signs of malicious or suspicious content
  7. WHOIS data unavailable, likely due to CZ NIC registry policies
Technical notes

Notes

The website is built on the OpenCms content management system, leveraging jQuery and Google services for analytics and security. Performance is moderate with good mobile optimization and accessibility features. The site uses modern meta tags and SEO best practices. Technical debt appears low with a well-maintained codebase. Hosting provider details are not explicit but the site uses HTTPS and Google infrastructure for analytics and reCAPTCHA. Opportunities exist to improve explicit security header implementation and to publish more detailed technical security 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. 67/100Medium30 findingsView report
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