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Security report for sauto.cz

Sauto.cz · Transportation · Czech Republic

Medium risk. 4 critical or high findings in GDPR outside view.

Security score

74/100

Risk levelMedium

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

Sauto.cz operates as the largest online automotive marketplace in the Czech Republic, offering a comprehensive platform for buying and selling new and used vehicles. The site targets both private individuals and professional car dealerships, providing extensive listings and filtering options to facilitate vehicle transactions. The platform is well integrated within the Seznam.cz ecosystem, leveraging various advertising and analytics services to enhance user engagement and monetization. Technically, the website employs modern web technologies including JavaScript frameworks, JSON-LD structured data for SEO, and robust security headers. The site is optimized for mobile devices and demonstrates good performance and accessibility standards. Integration with Seznam.cz login and advertising services indicates a mature digital infrastructure. From a security perspective, the site enforces HTTPS and includes multiple security headers, reflecting a strong security posture. However, the absence of explicit privacy, cookie, and terms of service policies, as well as missing WHOIS registration data, introduces compliance and trust concerns. No direct contact information or incident response channels are evident, which could impact user confidence and regulatory compliance. Overall, Sauto.cz presents a professional and functional online marketplace with strong technical and security foundations but would benefit from enhanced transparency regarding privacy, data protection, and domain registration details to improve trust and compliance.

Scanned

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

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

4 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

    • 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 sauto.cz

This scan found 17 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
95
Security headers
80
Email security
70
DNS health
75
Network security
100
GDPR outside view
25
Average
74

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

Sauto.cz holds a dominant market position as the largest online car bazaar in the Czech Republic, serving a broad audience of car buyers and sellers. Its business model centers on providing a digital platform for automotive listings and advertising, generating revenue through listing fees and advertising partnerships. The integration with Seznam.cz and related media sites expands its reach and marketing capabilities. The platform supports a wide range of vehicle brands and categories, indicating a comprehensive inventory and strong supplier relationships. Growth indicators include extensive content updates and a large volume of active listings. Strategic partnerships with advertising networks and analytics providers enhance monetization and user insights.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, comprehensive security headers, and secure integration with login services. No exposed sensitive data or vulnerable libraries were detected in the analyzed content. However, the lack of published security policies, incident response contacts, and vulnerability disclosure mechanisms represents gaps in security governance and transparency. GDPR compliance indicators are minimal, and no cookie consent mechanisms were identified, which may pose regulatory risks. The absence of WHOIS data reduces domain trustworthiness and complicates incident attribution. Overall, the site is secure technically but requires improvements in compliance documentation and incident readiness.

Recommendations

  1. Publish clear and comprehensive privacy and cookie policies with user consent mechanisms to ensure GDPR compliance.
  2. Provide explicit terms of service and security policy pages to enhance transparency and user trust.
  3. Add dedicated contact channels for security incidents, including abuse and security email addresses.
  4. Implement and publicize a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  5. Clarify domain registration details or ensure WHOIS data is publicly available to improve legitimacy and trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sauto.cz
Description
Sauto.cz is the largest online car bazaar in the Czech Republic offering over 80,000 listings of new and used cars for sale from both car dealerships and private sellers.
Key services
Car listings for new and used vehicles, Advertising platform for car sellers, Automotive news and articles
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Nginx, Modern CSS, JSON-LD structured data, Seznam.cz login API, Gemius analytics, PubMatic ads, Adnxs ads
Frameworks
Custom JS framework (IMA), Seznam.cz proprietary services
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data detected
  • Secure login integration

Analytics and tracking

Services
Gemius
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
PubMatic, Adnxs, Seznam SSP
Tracking pixels
Gemius
Marketing tools
Seznam.cz marketing tools
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 rich content and interactive features.
  2. No WHOIS data available, indicating possible privacy protection or domain registration issues.
  3. No explicit privacy, cookie, or terms of service policies found in the provided content.
  4. Strong integration with Seznam.cz ecosystem and advertising networks.
  5. Good security headers and HTTPS usage observed.
  6. No direct contact emails or phone numbers found in the content.
  7. Extensive car listings and filtering options indicate a mature marketplace platform.
Technical notes

Notes

The website uses a modern JavaScript-based frontend framework with modular loading and server-side rendering capabilities. It employs JSON-LD structured data for SEO and integrates multiple third-party services including Seznam.cz login, Gemius analytics, and several advertising networks. The site is served via Nginx with strong security headers and HTTPS enforcement. Performance is optimized with preloading of CSS and scripts, and mobile responsiveness is excellent. No CMS was explicitly detected, suggesting a custom or proprietary platform. The technical infrastructure is robust, scalable, and well integrated with local Czech internet services, supporting a large volume of listings and user interactions.
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. 74/100Medium25 findingsView report
  2. 74/100Medium26 findingsView report
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