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Security report for kurzy.cz

Kurzy.cz · Finance · Czech Republic

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

72/100

Risk levelMedium

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

Kurzy.cz is a prominent Czech financial information portal providing real-time currency exchange rates, stock market data, commodity prices, and economic news. It serves a broad audience including investors, financial professionals, and the general public interested in economic developments. The site features regularly updated content and integrates multiple advertising and analytics services, supported by a cookie consent mechanism. Technically, the site uses modern web technologies such as jQuery, Google Fonts, and Google Tag Manager, ensuring a moderate performance and basic mobile optimization. Security posture is adequate with HTTPS enforced but lacks some important security headers, which should be addressed to enhance protection against common web threats. The absence of WHOIS data limits domain trust assessment, but the site's professional content and high traffic indicate legitimacy. Overall, Kurzy.cz is a reliable source for financial data and news in the Czech market.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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

4 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';…
  2. GDPR outside view

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

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  3. 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 Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching kurzy.cz

This scan found 21 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
82
Security headers
30
Email security
55
DNS health
80
Network security
100
GDPR outside view
85
Average
72

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 kurzy.cz, from OffSeq Breach.

Total records
1,005
Employees
0
Customers
948
Third parties
57
Weak passwords
25%

11 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 kurzy.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

Kurzy.cz holds a strong market position as a leading Czech financial news and data provider. Its business model relies primarily on advertising revenue, leveraging high visitor volumes and extensive financial content. The portal targets retail and professional investors, offering key services such as currency exchange rates, stock market indices, commodity prices, and economic indicators. The site maintains partnerships with related news and weather services, enhancing its content ecosystem. Despite the lack of explicit company contact information and privacy policy pages, the portal's consistent branding and frequent updates support its credibility. Growth opportunities include expanding mobile optimization and enhancing privacy compliance to meet evolving regulatory standards.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enabled and use of consent mechanisms for cookies. However, it lacks critical security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options, which are essential to mitigate risks such as cross-site scripting and clickjacking. No exposed sensitive data or vulnerable libraries were detected in the provided content. The absence of a visible security policy or incident response contact reduces transparency. To improve, Kurzy.cz should implement comprehensive security headers, publish clear security and privacy policies, and establish incident response channels. These steps will strengthen compliance with GDPR and NIS2 directives and enhance user trust.

Recommendations

  1. Implement Content-Security-Policy (CSP) header to reduce XSS attack surface.
  2. Add X-Frame-Options and X-Content-Type-Options headers to prevent clickjacking and MIME sniffing.
  3. Publish a comprehensive privacy policy and terms of service accessible from the homepage.
  4. Establish and publicize incident response contact information for security issues.
  5. Enhance mobile optimization and accessibility to improve user experience and compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Kurzy.cz
Description
Kurzy měn, online informace z investic. Kurzy měn, akcie cz, burza a RM systém, zahraniční akcie, komodity, zákony.
Key services
Currency exchange rates, Stock market data, Commodity prices, Financial news, Economic indicators, Investment articles
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.6.0, Google Fonts, Google Tag Manager, Google Ads, Gemius analytics, DoubleClick for Publishers (DFP), Material Icons
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • Use of async loading for scripts
  • Consent mechanism for cookies

Analytics and tracking

Services
Gemius, Google Analytics (via GTM inferred)
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google AdSense, DoubleClick, Gemius
Tracking pixels
Facebook Pixel, Google Ads Conversion Tracking, Gemius
Marketing tools
Funding Choices (Google Consent Management)
Transparency
good

Site quality

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

Key observations

  1. Website is a major Czech financial news and data portal.
  2. Content is rich, updated frequently, and relevant to investors and the general public.
  3. No WHOIS data available, which limits domain trust analysis.
  4. Uses multiple third-party analytics and advertising services with consent mechanisms.
  5. Security headers are partially implemented; improvements recommended.
  6. No contact emails or phone numbers explicitly found on the main page.
  7. No explicit privacy policy or terms of service pages detected in the provided content.
  8. No signs of adult or unsafe content.
  9. Website is accessible without WAF or blocking.
Technical notes

Notes

Kurzy.cz employs a modern web technology stack including jQuery 3.6.0, Google Fonts, Google Tag Manager, and multiple advertising and analytics scripts such as Gemius and Google Ads. The site uses asynchronous script loading to optimize performance. However, mobile optimization is basic and could be improved for better responsiveness. SEO is well addressed with proper meta tags and canonical links. The site lacks a detected CMS, suggesting a custom or proprietary platform. Hosting provider details are not evident from the content. Performance is moderate, with room for improvement in accessibility features and security header implementation to reduce technical risks.
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. 71/100 −1Medium30 findingsView report
  2. 72/100Medium29 findingsView report
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