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Security report for gymnathlon.cz

Gymnathlon · Other · Czech Republic

Low risk. 3 critical or high findings in Security headers.

Security score

79/100

Risk levelLow

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

Gymnathlon.cz is a Czech website offering a sports program targeted at children aged 2.5 to 11 years, focusing on versatile physical development and playful experience rather than competitive sports. The website is built on TYPO3 CMS and integrates modern tracking and consent management tools such as Cookiebot, Google Tag Manager, and Facebook Pixel. The site is well-structured with good SEO and mobile optimization, providing a professional user experience. Security measures include HTTPS enforcement and standard security headers, though there is room for improvement in content security policies and incident response transparency. The absence of WHOIS data limits domain trust assessment, but the website's content and technical posture suggest a legitimate small business. Privacy compliance is well addressed with a comprehensive cookie consent mechanism and privacy policy. Overall, the site is safe, professional, and suitable for its target audience.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

3 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 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 gymnathlon.cz

This scan found 16 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

€25per month

  • 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
95
Security headers
30
Email security
75
DNS health
85
Network security
100
GDPR outside view
88
Average
79

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

Gymnathlon operates in the niche sector of children's sports education within the Czech Republic, offering a unique program emphasizing healthy physical development and enjoyment over competition. The business model revolves around providing structured sports activities for young children, likely generating revenue through program fees or memberships. The website's use of multiple advertising and tracking services indicates an active marketing approach to reach parents and guardians. The lack of explicit contact information and WHOIS data suggests a small-scale operation possibly prioritizing privacy. The company maintains a consistent brand presence and leverages third-party tools for analytics and marketing, positioning itself as a specialized provider in its market segment.

Security posture

The website demonstrates a solid security posture with HTTPS enabled and several security headers implemented, reducing common web vulnerabilities. The use of Cookiebot ensures GDPR-compliant cookie management and user consent. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the absence of a security policy, incident response information, and vulnerability disclosure mechanisms such as security.txt indicates areas for improvement in transparency and readiness. The integration of multiple third-party tracking and advertising services requires ongoing monitoring to ensure compliance and security. Overall, the site is secure for its purpose but could enhance its security maturity by publishing relevant policies and response procedures.

Recommendations

  1. Implement a comprehensive Content Security Policy (CSP) to mitigate cross-site scripting and related attacks.
  2. Publish a security policy and incident response page to improve transparency and preparedness.
  3. Add a security.txt file to facilitate responsible vulnerability disclosure.
  4. Provide clear and verified contact information including company emails and phone numbers to enhance business credibility.
  5. Consider publishing terms of service to clarify user rights and obligations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Gymnathlon
Description
Všestranný pohybový rozvoj místo okamžitého výběru sportu, maximální hravost a prožitek místo tlaku na výkon a výsledek, zdravý fyzický vývoj místo jednostranné zátěže.
Key services
sports program for children aged 2.5–11 years
Content quality
good
Branding
consistent

Technology

Stack
TYPO3 CMS, Google Tag Manager, Cookiebot, Facebook Pixel, Pinterest tracking, Vimeo, Cloudflare (implied by cookies)
Frameworks
TYPO3 Bootstrap Package
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Microsoft Clarity
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google AdSense, Meta Platforms (Facebook)
Tracking pixels
Facebook Pixel, Pinterest tracking, Microsoft Clarity
Marketing tools
Cookiebot, Elfsight widgets
Transparency
good

Site quality

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

Key observations

  1. Website uses HTTPS and modern tracking and consent tools
  2. No WHOIS data available, possibly due to privacy protection or registry limitations
  3. Cookie consent is implemented with detailed cookie declaration
  4. No explicit contact emails or phone numbers found in the HTML content
  5. No terms of service page detected
  6. No security.txt or vulnerability disclosure found
  7. Website content is professionally presented and targeted at children and parents
  8. Multiple external tracking and advertising domains used
  9. No signs of adult or questionable content
Technical notes

Notes

The website is powered by TYPO3 CMS with a Bootstrap-based theme, indicating a modern and maintainable infrastructure. It uses Google Tag Manager, Facebook Pixel, Pinterest tracking, and Vimeo integrations, reflecting a mature digital marketing setup. Cookiebot manages cookie consent, ensuring GDPR compliance. The site loads multiple external resources from trusted domains, which may impact performance but are standard for marketing and analytics. The site is mobile-optimized and includes accessibility features, though some improvements could be made. Hosting provider details are not explicitly identified. Overall, the technical implementation supports a professional and functional website with moderate performance and good SEO.
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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