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Security report for les-tilleuls.coop

La Cooperative des Tilleuls · Technology · France

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

Security score

72/100

Risk levelMedium

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

Les-Tilleuls.coop is a French technology cooperative specializing in API, web, and cloud expertise. They are creators of the API Platform framework and FrankenPHP, and maintainers of Symfony. The company operates as a self-managed, egalitarian cooperative with over 70 employees and multiple offices across France. Their market position is strong within the open source and enterprise technology sectors, serving over 200 partners with consultancy, development, training, and cloud services. Technically, the website is built on modern frameworks including Next.js, Symfony, Laravel, and Vue.js, hosted with Cloudflare DNS and CDN, ensuring good performance and mobile optimization. Security posture is solid with HTTPS and no exposed sensitive data, though improvements are recommended in DNSSEC and security headers. Privacy compliance is basic, lacking explicit cookie consent and detailed privacy policies. Overall, the company demonstrates high business credibility and trustworthiness with certifications like B Corp and a transparent WHOIS record.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 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. 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"

    • 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';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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 les-tilleuls.coop

This scan found 16 issues across 5 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
75
Security headers
30
Email security
100
DNS health
90
Network security
100
GDPR outside view
35
Average
72

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

The company targets technology professionals and organizations needing API-first development, cloud security, and training. Their business model combines open source software development, consultancy, and educational masterclasses. They maintain strategic partnerships with major frameworks and platforms, enhancing their competitive advantage. Growth indicators include a large contributor base, international conferences, and recognized certifications. The cooperative structure emphasizes social responsibility and employee ownership, differentiating them in the market. Their partner ecosystem includes API Platform, FrankenPHP, Kubernetes, and Laravel official partnerships, supporting a robust service offering.

Security posture

The website enforces HTTPS and uses Cloudflare DNS, providing a secure baseline. No critical vulnerabilities or exposed sensitive data were detected. However, DNSSEC is not enabled, and common security headers like Content-Security-Policy and X-Frame-Options are not explicitly present, representing areas for improvement. The absence of a published security policy, incident response contacts, and vulnerability disclosure reduces transparency and readiness. Privacy compliance is limited, with no cookie consent mechanism detected. Overall, the security maturity is moderate to good but could be enhanced with additional policies and technical controls.

Recommendations

  1. Enable DNSSEC to strengthen DNS security and prevent spoofing.
  2. Implement comprehensive security headers including CSP, X-Frame-Options, and X-Content-Type-Options.
  3. Publish a detailed security policy and incident response contact information on the website.
  4. Add a cookie consent banner and explicit privacy compliance statements to meet GDPR requirements.
  5. Consider establishing a vulnerability disclosure policy or security.txt file to encourage responsible reporting.

Contact details published on the site

Addresses
Legal name
La Cooperative des Tilleuls
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
La Cooperative des Tilleuls
Description
API, Web & Cloud experts. Creators of the API Platform framework. Symfony maintainers. Self-managed company.
Key services
API Platform framework development, FrankenPHP development, Consultancy, Training and masterclasses, Cloud and security services
Content quality
excellent
Branding
consistent

Technology

Stack
React (Next.js), Cloudflare DNS, API Platform, FrankenPHP, Kubernetes, Laravel, Symfony, Vue.js
Frameworks
Next.js, Symfony, Laravel
Platforms
Cloudflare
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of Cloudflare DNS and CDN

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

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 no blocking detected.
  2. Strong emphasis on open source and community contributions.
  3. Clear contact information with multiple channels.
  4. No explicit privacy or cookie consent mechanisms found.
  5. Use of modern web technologies and frameworks.
  6. Social media presence is extensive and consistent.
  7. WHOIS data supports legitimacy and transparency.
  8. No signs of suspicious or malicious activity.
Technical notes

Notes

The website uses a modern technology stack with Next.js for frontend rendering, integrating Symfony, Laravel, and Vue.js frameworks for backend and frontend components. Hosting and DNS are managed via Cloudflare, providing CDN and security benefits. The site is mobile-optimized, accessible, and SEO-friendly with proper meta tags and structured data (JSON-LD). Performance is fast with preloading and deferred scripts. The content management system appears to be WordPress or a hybrid headless CMS, inferred from wp-content URLs and JSON data. Technical debt is minimal, but security header implementation and cookie management require attention to align with best practices.
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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