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Security report for leasingmarkt.de

LeasingMarkt.de GmbH · Transportation · Germany

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

60/100

Risk levelMedium

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

LeasingMarkt.de GmbH operates Germany's leading online marketplace for auto leasing offers, providing consumers and businesses with a platform to compare leasing deals across all major car brands and models. The website facilitates direct contact with dealers and offers additional services such as leasing takeovers, newsletters, and WhatsApp deal alerts. The company positions itself as a market leader in the transportation sector within Germany, targeting both private and commercial customers seeking flexible leasing options. Technically, the website is built with modern web technologies including JavaScript ES modules, CSS3, and SVG graphics, hosted on Amazon AWS infrastructure. It integrates a sophisticated consent management platform aligned with GDPR requirements, ensuring user privacy and compliance. The site demonstrates good mobile optimization and SEO practices, although some accessibility features could be enhanced. From a security perspective, LeasingMarkt.de enforces HTTPS and employs consent mechanisms for cookie and data processing compliance. However, it lacks explicit security headers and publicly available security policies or incident response contacts, which could be improved to strengthen trust and resilience. No critical vulnerabilities or suspicious patterns were detected in the analysis. Overall, LeasingMarkt.de presents a professional, trustworthy, and user-friendly platform with strong privacy compliance and a solid technical foundation. Strategic enhancements in security transparency and accessibility would further elevate its market standing and user confidence.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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

7 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 Cookie Policy found

      GDPR requires clear information about cookie usage

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

  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 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';…

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

Keep watching leasingmarkt.de

This scan found 28 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
72
Security headers
15
Email security
65
DNS health
65
Network security
100
GDPR outside view
40
Average
60

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 leasingmarkt.de, from OffSeq Breach.

Total records
837
Employees
0
Customers
837
Third parties
0
Weak passwords
7%

2 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 leasingmarkt.de.

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

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Technical appendix

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

Business context

Business profile

LeasingMarkt.de holds a strong market position as Germany's premier auto leasing marketplace, leveraging partnerships with related automotive platforms such as Autoscout24 and Leasevergelijker. Its business model centers on aggregating leasing offers and facilitating direct dealer interactions, generating revenue likely through lead generation and advertising. The platform targets a broad customer base including private individuals and businesses, offering diverse leasing categories and brands. Growth indicators include extensive brand coverage, marketing popups for user engagement, and multi-channel communication strategies. The partnership ecosystem with major automotive and media sites enhances its reach and credibility.

Security posture

The website exhibits a mature security posture with enforced HTTPS and GDPR-compliant consent management. The absence of critical vulnerabilities and exposed sensitive data is positive. However, the lack of security headers such as Content-Security-Policy and missing public security policies or incident response contacts represent gaps in transparency and defense-in-depth. No vulnerability disclosure or security.txt files were found, limiting external reporting channels. The security culture appears focused on privacy compliance but could benefit from enhanced communication and technical controls to mitigate emerging threats and build user trust.

Recommendations

  1. Implement standard security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to harden browser security.
  2. Publish a dedicated security policy and provide clear incident response contact information to improve transparency and user confidence.
  3. Establish a vulnerability disclosure program or security.txt file to facilitate responsible reporting of security issues.
  4. Enhance accessibility features to comply with WCAG standards and improve usability for all users.
  5. Regularly audit third-party scripts and dependencies to identify and mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
LeasingMarkt.de GmbH
Description
Der führende Marktplatz für Auto Leasing Angebote mit allen Marken & Modellen, direktem Kontakt zum Händler, günstig & schnell.
Key services
Auto leasing offer comparison, Direct dealer contact, Leasing deals and promotions, Leasing takeover listings, Newsletter and WhatsApp deal alerts
Content quality
good
Branding
consistent

Technology

Stack
JavaScript ES Modules, CSS3, HTML5, AWS DNS (Amazon Route 53), Consent Management Platform (CMP) from Autoscout24, SVG icons
Frameworks
Custom CMP integration
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management for GDPR compliance
  • No exposed sensitive data in HTML
  • Use of secure cookies (implied by consent scripts)

Analytics and tracking

Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Consent Management Platform by Autoscout24, Newsletter subscription, WhatsApp marketing popup
Transparency
basic

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. Strong GDPR compliance with integrated consent management.
  3. Comprehensive auto leasing marketplace with extensive brand and category coverage.
  4. No direct contact emails or phone numbers found in HTML content; contact likely via dedicated pages.
  5. Use of modern web technologies and AWS hosting.
  6. No visible security policy or incident response contact information.
  7. No explicit terms of service page detected.
  8. No security.txt or vulnerability disclosure found.
Technical notes

Notes

LeasingMarkt.de is hosted on Amazon AWS, leveraging a modern tech stack with JavaScript ES modules, CSS3, and SVG icons. The site uses a custom or proprietary frontend framework with integrated consent management from Autoscout24, ensuring GDPR compliance. Performance is moderate with preloading of critical assets and fonts. Mobile optimization is good, with responsive design and adaptive UI elements. SEO is well addressed through meta tags, Open Graph, and structured JSON-LD data. Technical risks include reliance on third-party CMP scripts and lack of explicit security headers. Opportunities exist to improve accessibility and security transparency to reduce technical debt and enhance operational 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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