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Security report for bike-arena.cz

Bike-Arena · Retail · Czech Republic

High risk. 11 critical or high findings in GDPR outside view, Network security and 2 other checks.

Security score

45/100

Risk levelHigh

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

Bike-Arena is a specialized retailer and service provider for bicycles and e-bikes located in Příbram, Czech Republic. The company offers a broad range of products including bicycles from brands like Trek, Giant, and Maxbike, alongside accessories, rentals, and maintenance services. Their business model combines e-commerce with a physical storefront, targeting cycling enthusiasts and local customers. The website is well-structured, providing clear navigation, product categories, and informative blog content to engage visitors. Technically, the website employs modern JavaScript libraries such as jQuery, jQuery UI, and Select2, and integrates Google Tag Manager and Google Analytics for marketing and analytics purposes. The site is mobile-optimized and uses HTTPS with good SSL configuration, ensuring secure data transmission. Cookie consent mechanisms are implemented, reflecting GDPR compliance. However, some security headers are missing, and no explicit security or incident response policies are published. From a security perspective, the site demonstrates good practices including secure login forms and consent management. No vulnerabilities or exposed sensitive data were detected in the HTML content. The absence of WHOIS data limits domain trust assessment, but the professional presentation and contact transparency support legitimacy. No signs of WAF or content blocking were found, allowing full content access. Overall, Bike-Arena presents a trustworthy and professional online presence with solid technical and privacy compliance foundations. Strategic improvements in security headers, incident response transparency, and vulnerability disclosure would further enhance their security posture and trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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

11 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

  2. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  3. 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';…

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Keep watching bike-arena.cz

This scan found 23 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.

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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
52
Security headers
20
Email security
85
DNS health
85
Network security
0
GDPR outside view
25
Average
45

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 · found on this site
  • 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

Bike-Arena operates in the retail sector focusing on bicycles and related products and services. Their competitive advantage lies in combining an e-commerce platform with a physical store offering test rides, servicing, and rentals, which caters well to local customers. The company targets recreational and sport cyclists, including families and enthusiasts seeking quality brands. Revenue streams include direct sales, rentals, and service fees. The presence of a blog and newsletter indicates active customer engagement and marketing efforts. Partnerships with known bicycle brands and a local physical presence strengthen their market position. Growth potential exists through expanding online offerings and enhancing digital marketing. The company appears to maintain a focused and consistent brand image with clear communication of services and policies.

Security posture

The website demonstrates a moderate to good security maturity level. HTTPS is enforced with strong SSL configuration, and cookie consent is managed properly, indicating GDPR awareness. The login form uses required fields, reducing input errors. However, the absence of key security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces defense-in-depth. No public security policy or incident response information is available, which may impact transparency and preparedness. No vulnerability disclosure or security.txt file is present, limiting external reporting channels. No exposed sensitive data or vulnerable libraries were detected in the analyzed content. Overall, the security posture is adequate for a small retail business but could be improved with additional security controls and transparency.

Recommendations

  1. Implement and configure security headers including CSP, HSTS, X-Frame-Options, and X-XSS-Protection to enhance browser security.
  2. Publish a clear security policy and incident response plan on the website to improve transparency and preparedness.
  3. Add a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  4. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
  5. Enhance accessibility features to comply with standards and improve user experience for all visitors.

Contact details published on the site

Addresses
VAT number
CZ7210271134
Registration number
65598326
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Bike-Arena
Description
Bike-Arena Příbram offers recreational, sport, and racing bicycles, including Trek, Giant, and Maxbike brands. They provide sales, rental, servicing, washing, warranty and post-warranty services, and have a physical store with parking and test rides.
Key services
Bicycle sales, E-bike sales, Bicycle rental, Servicing and washing, Warranty and post-warranty service
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.6.0, jQuery UI 1.13.2, Select2, Google Tag Manager, Google Analytics (gtag.js), Seznam retargeting script
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management for cookies
  • No exposed sensitive data in HTML
  • Secure login form with required fields

Analytics and tracking

Services
Google Analytics, Google Ads
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads, Seznam Retargeting
Tracking pixels
Google Ads Conversion Tracking
Marketing tools
Select2 for UI enhancements
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. WHOIS data is unavailable, limiting domain trust analysis.
  3. Comprehensive privacy and cookie policies are present and GDPR compliant.
  4. Clear contact information including email, phone, and physical address is provided.
  5. Website uses modern JavaScript libraries and tracking tools responsibly with consent management.
  6. No security policy or incident response information is publicly available.
  7. No vulnerability disclosure or security.txt found.
  8. Website content is relevant, professional, and safe for general audiences.
Technical notes

Notes

The website uses a modern JavaScript-based front end with libraries such as jQuery 3.6.0, jQuery UI 1.13.2, and Select2 for enhanced UI components. Google Tag Manager and Google Analytics are integrated for marketing and analytics tracking, with cookie consent mechanisms in place. The site is mobile responsive and includes SEO-friendly meta tags and Open Graph data for social sharing. No CMS was explicitly detected, suggesting a custom or proprietary platform. Performance is moderate with asynchronous loading of scripts. Hosting provider details are not disclosed. The site could benefit from improved accessibility features and implementation of security headers. Overall, the technical infrastructure supports a professional e-commerce experience with room for security and accessibility enhancements.
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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