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Security report for leboncoin.fr

E-commerce · N/a

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

The website www.leboncoin.fr is currently inaccessible due to a CAPTCHA challenge implemented by a bot mitigation service, preventing access to actual site content. The domain WHOIS data is unavailable or not found in the AFNIC database, limiting the ability to verify domain registration details and legitimacy. No metadata, structured data, or business contact information is present in the accessible content. The site appears to be protected by a Web Application Firewall or similar security mechanism, which blocks automated access and may hinder external analysis. Due to these factors, the technical infrastructure and digital maturity cannot be fully assessed, and the security posture is unknown beyond the presence of bot protection. Overall, the risk assessment is limited by the lack of accessible data, and strategic recommendations focus on improving transparency and accessibility for legitimate users and analysts.

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

      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

  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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

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

Keep watching leboncoin.fr

This scan found 19 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

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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
74
Security headers
45
Email security
87
DNS health
85
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

Technical appendix

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

Business context

Business profile

Due to the lack of accessible content and WHOIS data, detailed business intelligence analysis is not possible. The domain name suggests an e-commerce platform, likely a classified ads or marketplace service, but no explicit business model, market position, or partnership information is available. The absence of contact details and policies reduces business credibility and trust signals. Without further data, insights into revenue streams, customer segments, or growth indicators cannot be provided.

Security posture

The current security posture shows the presence of a bot mitigation CAPTCHA service, indicating an effort to protect the site from automated threats. However, no other security headers or policies are detectable. The absence of privacy, cookie, or incident response policies suggests gaps in compliance and transparency. The lack of WHOIS data further complicates trust verification. No vulnerabilities or exposed sensitive data are visible due to content blocking, but the inability to analyze the site fully is itself a security concern for external stakeholders.

Recommendations

  1. Implement a user-friendly CAPTCHA or bot mitigation that allows legitimate access for analysis and indexing.
  2. Publish clear privacy, cookie, and terms of service policies accessible without CAPTCHA.
  3. Provide visible contact information including security incident response channels.
  4. Ensure WHOIS data is complete and publicly available to improve domain trustworthiness.
  5. Add security headers and improve SSL/TLS configuration to enhance security posture.
Site observations

Automated reading of the public site. Ratings are indicative.

Generic detected. Page content is a CAPTCHA challenge iframe from captcha-delivery.com indicating WAF or bot protection blocking access to actual site content. These observations may be incomplete. For a fuller analysis, contact guard@offseq.com.

Business

Content quality
poor

Technology

Stack
captcha-delivery.com script

Analytics and tracking

Site quality

Design
poor
User experience
poor
Content relevance
poor
Navigation
poor
Professionalism
poor
Trustworthiness
low

Key observations

  1. Website content is inaccessible due to a CAPTCHA challenge likely implemented by a WAF or bot mitigation service.
  2. No metadata, structured data, or forms are present in the provided HTML content.
  3. No contact information, privacy, cookie, or terms of service policies found in the content.
  4. WHOIS data is unavailable or not found in the AFNIC database, limiting domain legitimacy verification.
  5. External scripts are only related to captcha-delivery.com, indicating bot protection.
  6. No social media links or business contact details are present.
  7. Content safety is rated safe due to lack of adult or explicit content.
  8. Overall, the analysis is severely limited by the blocked content.
Technical notes

Notes

The technical analysis is limited to detection of captcha-delivery.com scripts used for bot protection. No CMS, frameworks, or hosting provider information is discernible. The HTML content is minimal and lacks metadata or structured data. Performance, SEO, accessibility, and mobile optimization cannot be evaluated. The presence of a WAF or similar security mechanism is confirmed, which impacts content availability and external analysis capabilities.
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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