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Security report for leskros.cz

Other · Czech Republic

High risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

48/100

Risk levelHigh

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

Leskros.cz is a Czech website dedicated to organizing and promoting a series of running events under the Rozběháme Česko project. The site targets runners and sports enthusiasts primarily in the Czech Republic, offering event registration, team challenges, charity runs, and running camps. The business operates as a small-scale event organizer with a niche focus on community sports activities. Technically, the website employs modern JavaScript frameworks, AJAX for dynamic content, and integrates Google Analytics and Facebook Pixel for tracking. The site is mobile-optimized and uses HTTPS for secure communications. Security posture is moderate with HTTPS enforced and cookie consent implemented, but lacks visible advanced security headers and explicit incident response policies. Privacy compliance is basic with a privacy policy and cookie banner present in Czech language. Overall, the website is professionally maintained with consistent branding and partner relationships, though WHOIS data is unavailable, likely due to privacy protection. The site poses low risk and is safe for general audiences.

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

8 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

  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 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 leskros.cz

This scan found 25 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
62
Security headers
20
Email security
70
DNS health
75
Network security
20
GDPR outside view
40
Average
48

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

Technical appendix

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

Business context

Business profile

The website positions itself as a regional sports event organizer with a focus on running races and community engagement. It leverages partnerships with related sports and nutrition brands, as evidenced by partner logos and external links. The business model centers on event registration fees, merchandise sales via an affiliated e-shop, and community-driven challenges. The target customer segment includes amateur and professional runners in the Czech Republic. The presence of charity events and team challenges indicates a community-oriented approach. Growth potential is supported by multiple scheduled events for 2025 and active social media channels. The partnership ecosystem includes sports nutrition, equipment suppliers, and local municipalities, enhancing credibility and operational support.

Security posture

The website demonstrates a moderate security maturity level. HTTPS is properly implemented, ensuring encrypted data transmission. A cookie consent mechanism is in place, indicating awareness of privacy regulations. However, no advanced security headers such as Content Security Policy, HSTS, or X-Frame-Options were detected, which could improve protection against common web attacks. There is no visible security or incident response policy, nor contact channels for reporting security issues. The use of third-party analytics and retargeting scripts introduces potential privacy risks if not properly managed. No vulnerabilities or exposed sensitive data were found in the HTML content. Overall, the site meets basic security standards but could benefit from enhanced security controls and transparency.

Recommendations

  1. Implement security headers including Content Security Policy, HSTS, and X-Frame-Options to strengthen defense against web attacks.
  2. Publish a dedicated security policy and incident response page with clear contact information for reporting vulnerabilities.
  3. Enhance accessibility features to improve usability for all users, including those with disabilities.
  4. Regularly audit third-party scripts and tracking tools to ensure compliance with privacy regulations and minimize risk.
  5. Consider publishing WHOIS registrant information or verified business credentials to improve trust and transparency.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
Website for Leskros, a race series part of the Rozběháme Česko project, offering running events and related activities in Czech Republic.
Key services
Running race series organization, Event registration, Team challenges, Charity events, Running camps
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, AJAX, Google Analytics, Facebook Pixel, Responsive design
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Facebook Pixel
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Facebook Pixel, Seznam Retargeting
Marketing tools
Facebook Pixel
Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. WHOIS data is unavailable or privacy protected, limiting domain age and registrant verification.
  3. Site uses multiple third-party analytics and retargeting scripts.
  4. Cookie consent and privacy policy are implemented in Czech language.
  5. No direct contact emails or phone numbers found on main pages.
  6. Content is focused on running events and community engagement in Czech Republic.
  7. Multiple partner logos and external links to related domains present.
  8. No security headers detected in provided data; HTTPS is enforced.
  9. No forms with sensitive data fields detected in main HTML content.
  10. No explicit security or incident response policies found.
Technical notes

Notes

The website uses a custom JavaScript-heavy front-end with AJAX for dynamic content loading. It integrates Google Analytics and Facebook Pixel for user tracking and marketing analytics. The site is responsive and mobile-friendly, with CSS and JavaScript assets versioned for cache control. No CMS or common frameworks were explicitly detected, suggesting a custom or proprietary platform. Performance is moderate with a page load time around 1.7 seconds and memory usage about 28MB. The site uses HTTPS exclusively, indicating good baseline security. However, no advanced security headers were observed. The technical stack is modern but could benefit from improved SEO metadata and accessibility enhancements. Hosting provider details are not disclosed in the content.
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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