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Security report for gym13.cz

Posilovna GYM13 · Hospitality · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

52/100

Risk levelMedium

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

Posilovna GYM13 is a small fitness center located in Modřice near Brno, Czech Republic, offering gym facilities, personal training, and a related e-commerce platform for fitness supplements under FITNESS13. The business emphasizes quality equipment, a clean environment, and customer service. Technically, the website uses modern web technologies including Google Analytics, jQuery, and Mapy.cz API, with a moderate performance and basic mobile optimization. Security posture is moderate with HTTPS implied but lacking visible security headers and privacy compliance elements such as privacy and cookie policies. The absence of WHOIS data reduces transparency but the website content and contact information appear legitimate. Overall, the site is professional and trustworthy but could improve compliance and security practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 100 · Critical
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

    • 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

  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';…

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

Keep watching gym13.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.

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
95
Security headers
35
Email security
65
DNS health
85
Network security
20
GDPR outside view
10
Average
52

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 operates a hybrid business model combining a physical gym and an online supplement store, targeting fitness enthusiasts in the Brno region. It leverages local manufacturing partnerships for supplements and maintains active social media channels. The business is relatively new (founded 2020) and positions itself as a quality-focused local player with reasonable pricing. Partnerships with FITNESS13 and web developer devtea.cz support its operations. Growth potential exists through expanding online sales and enhancing digital presence.

Security posture

The website uses HTTPS and includes no visible forms collecting sensitive data, reducing immediate risk. However, the lack of security headers and absence of privacy and cookie policies indicate compliance gaps with GDPR and best practices. No incident response or vulnerability disclosure mechanisms are present. The WHOIS data is missing, which may be a concern for domain legitimacy. Overall, security maturity is moderate but could be improved by implementing security headers, privacy compliance, and formal vulnerability disclosure.

Recommendations

  1. Implement and publish a comprehensive privacy policy and cookie consent mechanism to improve GDPR compliance.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to enhance security posture.
  3. Publish a security.txt file or similar vulnerability disclosure policy to facilitate responsible reporting.
  4. Improve mobile responsiveness and accessibility features to enhance user experience and compliance.
  5. Investigate and resolve the missing WHOIS data to improve domain transparency and trustworthiness.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Posilovna GYM13
Description
Posilovna GYM13 is a fitness center located in the multi-purpose sports hall in Modřice near Brno, Czech Republic. It offers quality gym equipment, a clean and modern environment, personal trainers, and additional services such as a café with coffee and tea. The business also operates a related e-shop for sports nutrition and fitness supplements under FITNESS13.
Key services
Gym access and fitness training, Personal trainer services, Sale of fitness supplements and nutrition products, MultiSport card acceptance
Content quality
good
Branding
consistent

Technology

Stack
Google Analytics, jQuery 3.4.1, Google Fonts (Roboto, Exo), Mapy.cz API
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
good

Security

Observed score
60/100
Good practices seen
  • Use of HTTPS (implied by URL)
  • No visible forms collecting sensitive data

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
poor

Advertising

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 detected.
  2. WHOIS data is missing, which is unusual and reduces transparency.
  3. No privacy or cookie policy found, indicating compliance gaps.
  4. Contact information is clearly presented and consistent.
  5. Website uses modern web technologies and external APIs.
  6. No forms detected that collect personal data.
  7. Social media presence is active and linked.
  8. Content is relevant and professionally presented.
  9. No security headers detected in provided data; potential improvement area.
Technical notes

Notes

The website is built with standard HTML5 and CSS, uses Google Fonts for typography, jQuery 3.4.1 for scripting, and integrates Google Analytics for traffic monitoring. It also uses the Mapy.cz API for map functionality and embeds YouTube videos. The site loads external scripts asynchronously to improve performance. No CMS or hosting provider information is detected. The site has moderate performance and basic mobile optimization. SEO is supported by proper meta tags and Open Graph data. There is room for improvement in accessibility and security headers.
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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