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Security report for autoscout24.lu

AutoScout24 · Transportation · Luxembourg

Medium risk. 6 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

69/100

Risk levelMedium

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

AutoScout24 is a leading European online marketplace specializing in the sale and purchase of new and used vehicles, including cars, motorcycles, caravans, and commercial vehicles. The platform serves a broad audience in Luxembourg and across Europe, connecting private sellers and professional dealers with buyers through a comprehensive and user-friendly website. The business model focuses on providing extensive vehicle listings, automotive advice, and additional services such as financing and insurance, positioning AutoScout24 as a dominant player in the transportation sector. Technically, the website employs modern web technologies including React, service workers, and integrates multiple tracking and advertising tools while maintaining GDPR compliance through a consent management platform. Security posture is strong with HTTPS enforcement and bot protection mechanisms, although explicit security policies and incident response information are not publicly available. Overall, the website demonstrates high professionalism, excellent content quality, and good privacy compliance, but the absence of WHOIS data and direct company contact details slightly reduce the business credibility score.

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 Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Amazon Ads, Google Ads

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

  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 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 autoscout24.lu

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.

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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
82
Security headers
65
Email security
60
DNS health
80
Network security
100
GDPR outside view
25
Average
69

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention autoscout24.lu, from OffSeq Breach.

Total records
72
Employees
0
Customers
72
Third parties
0
Weak passwords
15%

3 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for autoscout24.lu.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

AutoScout24 operates as a large-scale online automotive marketplace with a strong presence in Luxembourg and other European countries. Its competitive advantage lies in the breadth of vehicle listings and the integration of services that facilitate vehicle transactions, including financing and insurance options. The platform targets individual car buyers and sellers as well as professional dealers, leveraging partnerships across multiple country-specific domains. The business model is primarily commission and service-based, generating revenue from dealer listings and value-added services. Growth indicators include a large inventory, multilingual support, and a well-established brand. The partnership ecosystem includes regional AutoScout24 domains and integration with major social login providers. Strategic observations suggest continued investment in user experience, mobile optimization, and compliance to maintain market leadership.

Security posture

The website exhibits a mature security posture with mandatory HTTPS, use of reCaptcha Enterprise for bot mitigation, and a consent management platform ensuring GDPR compliance. Security best practices such as secure login flows with social providers and absence of exposed sensitive data are observed. However, the lack of a publicly accessible security policy, incident response plan, or vulnerability disclosure program limits transparency and preparedness perception. No critical vulnerabilities or security misconfigurations were detected in the analyzed content. The security score is strong but could be improved by publishing explicit security documentation and providing direct security contact channels.

Recommendations

  1. Publish a dedicated security policy and incident response information page to enhance transparency.
  2. Implement and publicize a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  3. Provide clear contact information for security and data protection inquiries, including a Data Protection Officer if applicable.
  4. Regularly audit and update third-party scripts to minimize potential vulnerabilities from external dependencies.
  5. Enhance WHOIS data accuracy and transparency to improve domain trustworthiness and business credibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
AutoScout24
Description
AutoScout24 is the largest online car marketplace in Europe offering new and used cars, motorcycles, caravans, and commercial vehicles. It connects buyers with private sellers and professional dealers, providing a wide range of vehicles and automotive services including financing and insurance.
Key services
Vehicle listings (new and used), Dealer and private seller platform, Vehicle search and filtering, Car selling services, Automotive advice and editorial content, Financing and insurance offerings
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript ES6 modules, React (implied by hydration comments), Service Workers, Google Tag Manager, Bing Ads tracking, Facebook Pixel, Cheq anti-fraud script
Frameworks
React
Platforms
Web
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of reCaptcha Enterprise for bot protection
  • Consent management platform for GDPR compliance
  • No exposed sensitive data in HTML
  • Secure login mechanisms with social providers

Analytics and tracking

Services
Google Analytics, Bing Ads, Facebook Pixel
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Bing Ads
Tracking pixels
Facebook Pixel
Marketing tools
Cheq anti-fraud
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and professional design
  2. Strong GDPR and cookie compliance with consent mechanisms
  3. No direct company contact emails or phone numbers found on homepage
  4. WHOIS data unavailable, limiting domain trust analysis
  5. Use of multiple tracking and advertising scripts with consent
  6. No security.txt or explicit security policy found
  7. No signs of adult or questionable content
Technical notes

Notes

The website is built using modern web technologies including React for frontend rendering, service workers for offline capabilities, and integrates multiple third-party analytics and advertising scripts such as Google Analytics, Bing Ads, and Facebook Pixel. The presence of a consent management platform indicates attention to privacy regulations. Performance is moderate with good mobile optimization and accessibility features. The site uses canonical and hreflang tags for SEO and supports multiple languages and country-specific domains. No CMS was explicitly detected. Hosting provider details are not available from the content. Overall, the technical infrastructure supports a scalable, user-friendly, and compliant online marketplace.
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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