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Security report for tennisparks-system4.com

Tennis Academy System 4® · Other · Switzerland

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

Security score

67/100

Risk levelMedium

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

Tennis Academy System 4® operates a local tennis academy based in Lutry, Switzerland, providing tennis training and related services. The website is built on the Wix platform, supporting multiple languages including French, German, and English, targeting tennis players and enthusiasts in the region. The business appears to be a small-scale service provider with a focus on tennis fundamentals and academy programs. Technically, the site uses Wix's Thunderbolt framework and standard JavaScript polyfills, with hosting and infrastructure managed by Wix.com. Performance and mobile optimization are moderate to good, but SEO and accessibility features are basic. Security posture is adequate with HTTPS enabled and some JavaScript security measures, but lacks important security headers and published security policies. Privacy compliance is weak due to absence of privacy and cookie policies or consent mechanisms. Overall, the site is safe, professional, and trustworthy for its intended audience but would benefit from enhanced privacy and security practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 100 · Medium
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. 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 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

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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

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

Keep watching tennisparks-system4.com

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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
72
Security headers
35
Email security
70
DNS health
75
Network security
100
GDPR outside view
50
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

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 positions itself as a local tennis academy serving the Swiss market, focusing on tennis fundamentals and training programs. Its business model is service-oriented, targeting tennis players and enthusiasts. The multilingual website indicates an intent to reach a broader regional audience. The use of Wix suggests a cost-effective digital presence suitable for small businesses. No evidence of partnerships or subsidiaries was found. The business maintains a consistent brand presence with moderate content quality and trust indicators such as structured data. Revenue streams likely derive from tennis training services and academy enrollments. Growth potential may be limited by the local scope and basic digital marketing efforts.

Security posture

The website demonstrates a basic security posture with HTTPS enforced and no visible exposed sensitive data. JavaScript includes security overrides to harden fetch and XMLHttpRequest calls, indicating some attention to security best practices. However, the absence of key security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options reduces protection against common web attacks. No incident response or vulnerability disclosure policies are published, and no dedicated security contact channels are provided. Privacy compliance is lacking, with no privacy or cookie policies detected. The site uses minimal tracking limited to Sentry error monitoring, which is privacy-friendly. Overall, the security maturity is moderate but could be improved with additional headers, policies, and transparency.

Recommendations

  1. Publish a comprehensive privacy policy and cookie policy with GDPR compliance details.
  2. Implement a cookie consent mechanism to comply with privacy regulations.
  3. Add security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to enhance protection.
  4. Provide incident response and vulnerability disclosure information with dedicated contact channels.
  5. Enhance accessibility features and SEO optimization to improve user experience and discoverability.

Contact details published on the site

Addresses
Legal name
Tennis Academy System 4®
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tennis Academy System 4®
Description
Tennis Academy System 4® is a local business located in Lutry, Switzerland, offering tennis-related services. The website is multilingual (French, German, English) and targets tennis players or enthusiasts interested in tennis fundamentals.
Key services
Tennis training, Tennis academy programs
Content quality
basic
Branding
moderate

Technology

Stack
Wix.com Website Builder, JavaScript, Segmenter Polyfill, Core-js polyfill, Focus-within polyfill, Sentry (error monitoring)
Frameworks
Wix Thunderbolt
Platforms
Wix
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • No exposed sensitive data in HTML
  • Use of security-related JavaScript overrides

Analytics and tracking

Services
Sentry (error monitoring)
Tracking level
minimal
Privacy practices
poor

Advertising

Tracking pixels
Sentry
Transparency
poor

Site quality

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

Key observations

  1. Website built on Wix platform with standard Wix technologies
  2. No visible privacy or cookie policies found
  3. Contact information limited to phone and physical address in structured data
  4. No forms detected in provided HTML content
  5. No social media links explicitly found in provided content
  6. No security or incident response policies published
  7. Good SSL configuration and HTTPS usage
  8. Minimal tracking and analytics usage
  9. Content is safe and appropriate for general audience
Technical notes

Notes

The website is built on the Wix platform using the Thunderbolt framework, leveraging modern JavaScript polyfills and error monitoring via Sentry. Hosting is managed by Wix, ensuring reliable infrastructure and SSL configuration. Performance is moderate with good mobile optimization. The site lacks advanced SEO and accessibility features but maintains a clean and functional design. No forms or complex interactive elements were detected in the provided HTML. The technical stack is appropriate for a small business website but could benefit from improvements in security headers and privacy compliance mechanisms to reduce risk and enhance trust.
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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