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Security report for rentstyl.cz

Rentstyl, s.r.o. · Transportation · Czech Republic

Medium risk. 6 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

57/100

Risk levelMedium

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

Rentstyl, s.r.o. operates a Czech-language website offering operational leasing and car rental services primarily for Škoda and Toyota vehicles. The company targets individuals and businesses seeking flexible vehicle leasing solutions with fixed monthly payments including insurance and servicing. The website is professionally designed with good content quality and clear navigation, optimized for mobile devices. Technically, the site uses a custom MVC-based CMS integrated with BSSHOP e-commerce platform and employs Google Tag Manager for analytics and marketing. Security posture is solid with HTTPS enforced and cookie consent mechanisms in place, though HTTP security headers are not explicitly detected. The absence of WHOIS data limits domain ownership transparency, which slightly impacts trustworthiness. Overall, the site presents a legitimate and professional business with moderate risk due to incomplete domain registration information.

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

6 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 Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics

      What to do: Document all third-party data sharing in your privacy policy

  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching rentstyl.cz

This scan found 20 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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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
77
Security headers
75
Email security
70
DNS health
75
Network security
20
GDPR outside view
25
Average
57

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

Rentstyl positions itself as a niche operational leasing and car rental provider in the Czech transportation sector, focusing on popular vehicle brands Škoda and Toyota. Its business model revolves around offering comprehensive leasing packages that include insurance and maintenance, appealing to customers who prefer predictable monthly costs. The company leverages digital marketing tools such as Google Ads and Tag Manager to reach its audience. The website content and structure indicate a small-sized enterprise with a localized market focus. The lack of detailed company registration data online suggests a need for improved transparency. Partnerships with BSSHOP for e-commerce integration indicate a strategic approach to streamline online sales and leasing processes.

Security posture

The website demonstrates a good security baseline with enforced HTTPS and a cookie consent banner aligned with GDPR requirements. No sensitive data is exposed in the HTML content, and no vulnerable libraries were detected. However, the absence of explicit HTTP security headers such as Content Security Policy, HSTS, and X-Frame-Options suggests room for improvement. There is no visible security policy or incident response contact information, which could be a gap in compliance and readiness. The use of third-party scripts like Google Tag Manager requires ongoing monitoring to mitigate supply chain risks. Overall, the security posture is adequate for a small business but would benefit from enhanced security controls and transparency.

Recommendations

  1. Implement comprehensive HTTP security headers including CSP, HSTS, and X-Frame-Options to strengthen defense against common web attacks.
  2. Publish a dedicated security policy and incident response contact information to improve transparency and compliance.
  3. Regularly audit and update third-party scripts and dependencies to prevent vulnerabilities.
  4. Enhance accessibility features to improve usability for all users.
  5. Improve domain registration transparency by ensuring WHOIS data is publicly available or providing verified company information on the website.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Rentstyl, s.r.o.
Description
Společnost Rentstyl nabízí operativní leasing a autopůjčovnu pro vozidla značek Škoda, Peugeot a Toyota. Služba zahrnuje pojištění, servis a fixní měsíční splátky, což umožňuje zákazníkům pohodlné užívání vozidel bez nepředvídatelných nákladů.
Key services
Operativní leasing, Autopůjčovna
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, jQuery, Google Tag Manager, Google Fonts
Frameworks
MVC Core (custom)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads (AW-668648465)
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. Content is professionally presented in Czech language targeting local customers.
  3. WHOIS data is unavailable, which reduces transparency about domain ownership.
  4. Privacy and cookie policies are present and GDPR compliant.
  5. Contact information is clearly provided with company email and phone number.
  6. No explicit security policy or incident response information found.
  7. Use of Google Tag Manager and Google Ads indicates marketing and analytics integration.
  8. No evidence of adult or questionable content.
  9. Website uses a custom CMS with MVC architecture and integrates with BSSHOP e-commerce platform.
Technical notes

Notes

The website is built on a custom MVC framework integrated with the BSSHOP e-commerce platform, utilizing JavaScript and jQuery for dynamic content and user interaction. Google Fonts and Google Tag Manager are used for styling and analytics respectively. The site is mobile responsive with multiple CSS stylesheets targeting different screen widths. Performance is moderate with asynchronous script loading and lazy image loading implemented. However, no explicit hosting provider information is available. The technical implementation is modern but could benefit from enhanced accessibility and security header configurations to reduce technical debt and improve resilience.
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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