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Security report for isportsystem.cz

Other · Czech Republic

High risk. 9 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

43/100

Risk levelHigh

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

The website www.isportsystem.cz represents a Czech-based reservation system provider specializing in sports, fitness, wellness, and leisure activity bookings. The company has a strong market presence with over 20 years of operation, serving more than 1000 customers and handling half a million reservations monthly. Their system is customizable, user-friendly, and continuously updated with new features, positioning them as a reliable SaaS provider in their niche. Technically, the website employs a traditional tech stack with jQuery and jQuery UI libraries, along with popular JavaScript plugins for UI enhancements. Google Analytics and Google Tag Manager are used for tracking. The site is mobile-optimized and well-structured, though some technologies like jQuery are outdated. No CMS or hosting provider information is evident. Performance is moderate with good SEO and basic accessibility. From a security perspective, HTTPS is implied but no explicit security headers were detected in the provided data. The site lacks a cookie consent mechanism, which is a GDPR compliance gap. No incident response or security policies are published. The WHOIS data is missing, which reduces domain trustworthiness, though the website content and business indicators suggest legitimacy. Overall, the site is professional and trustworthy but would benefit from improved security practices, updated technologies, and enhanced privacy compliance to strengthen its risk posture and user trust.

Scanned

This is an earlier scan of isportsystem.cz. View the latest report

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

9 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 isportsystem.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

€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
75
Security headers
20
Email security
55
DNS health
80
Network security
20
GDPR outside view
10
Average
43

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 in the niche market of sports and leisure activity reservation systems, targeting sports centers, fitness facilities, wellness providers, and individual users. Their SaaS business model relies on subscription or licensing fees for the reservation platform. The firm leverages long-term market experience and a large customer base as competitive advantages. The partnership with rezervujstul.cz indicates ecosystem expansion into restaurant reservations. Growth is supported by continuous product development and customer support. The absence of explicit company registration or contact details on the site limits transparency but does not negate operational credibility.

Security posture

The current security maturity is moderate. The site uses HTTPS and standard tracking tools but lacks advanced security headers and published security policies. The use of an outdated jQuery version may expose the site to known vulnerabilities. GDPR compliance is partial due to missing cookie consent. No visible incident response or vulnerability disclosure mechanisms are present. Data protection officer contact is not provided. The business should prioritize implementing security headers, updating libraries, and publishing privacy and security policies to improve compliance and reduce risk.

Recommendations

  1. Implement a cookie consent banner to comply with GDPR and improve privacy transparency.
  2. Add and configure security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Upgrade jQuery and other JavaScript libraries to current secure versions to mitigate vulnerabilities.
  4. Publish explicit security and incident response policies, including contact channels for security issues.
  5. Enhance accessibility features and consider adding structured data (JSON-LD) for SEO and rich results.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
iSport is a Czech reservation system designed for managing bookings of sports facilities, group exercises, and various leisure activities. It offers graphical customization, wide configuration options, and intuitive operation. The system is continuously developed with over 80 new features and updates annually, serving over 1000 customers with 500,000 reservations per month.
Key services
Reservation system for sports, exercises, and activities, Graphical customization to client branding, Customer support, Continuous system development and updates
Content quality
good
Branding
consistent

Technology

Stack
jQuery 1.10.2, jQuery UI 1.9.2, Google Analytics, Fancybox, Unite Gallery, Responsive Carousel
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS usage implied by Google Analytics script loading over HTTPS
  • No visible exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content in Czech language
  2. No contact emails or phone numbers explicitly provided on main page
  3. Privacy and terms pages exist but cookie consent is missing
  4. No visible security headers or advanced security policies published
  5. Uses older jQuery version (1.10.2) which may have known vulnerabilities
  6. No structured data (JSON-LD) or Open Graph beyond basic image tag
  7. No forms detected on main page for direct contact or data collection
Technical notes

Notes

The website uses legacy JavaScript libraries (jQuery 1.10.2, jQuery UI 1.9.2) alongside modern UI plugins like Fancybox and Unite Gallery. Google Analytics and Tag Manager are integrated for analytics. The site is mobile responsive with custom CSS and fonts from Google Fonts. No CMS or hosting details are evident. Performance is moderate with no major errors detected. The HTML is valid and SEO meta tags are properly set. However, the absence of security headers and outdated libraries present technical debt and potential security risks. Modernization and security hardening are recommended.
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. 46/100High33 findingsView report
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