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Security report for lettre-resiliation.com

Telecommunications · France

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

Security score

71/100

Risk levelMedium

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

Lettre-Resiliation.com is a French online service platform that enables users to send registered termination letters without physically visiting the post office. The website offers letter templates, online registered mail sending via La Poste, and real-time tracking of mail status. It targets French-speaking consumers seeking a convenient and reliable way to manage contract terminations. The platform demonstrates a moderate level of digital maturity with the use of modern web technologies, tracking tools, and consent management scripts. However, the absence of WHOIS registration data raises concerns about domain legitimacy. Security posture is generally good with HTTPS and some security best practices, but explicit privacy policies and contact information are lacking, which impacts compliance and trust. Overall, the site is professional and trustworthy from a user perspective but requires improvements in transparency and domain registration legitimacy to enhance business credibility.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 100 · Medium
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. 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';…

  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 Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, Twitter, YouTube, Google APIs

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

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching lettre-resiliation.com

This scan found 21 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
62
Security headers
60
Email security
75
DNS health
80
Network security
100
GDPR outside view
50
Average
71

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 business operates in the telecommunications and related service sectors, providing a niche service for contract termination letters. It leverages partnerships with La Poste for mail delivery and Avis Vérifiés for customer review verification, indicating a strong ecosystem. The business model is service-based, monetizing through online registered mail sending. The large volume of verified reviews suggests a significant user base and market presence in France. The company appears medium-sized with consistent branding and good content quality. However, lack of visible company registration details and contact information limits full business intelligence assessment.

Security posture

The website enforces HTTPS and uses security-conscious scripts and consent management, indicating awareness of privacy and security requirements. Security headers are partially implemented or inferred but could be improved with explicit headers like X-Frame-Options and Referrer-Policy. No vulnerabilities or exposed sensitive data were detected in the HTML. The absence of a security policy or incident response contact reduces readiness for security incidents. GDPR compliance is partially addressed via consent mechanisms but lacks visible privacy policy documentation. Overall, the security posture is moderate with room for enhancement in transparency and policy documentation.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service pages accessible from the homepage.
  2. Add explicit security headers such as X-Frame-Options, X-Content-Type-Options, and Referrer-Policy to enhance security.
  3. Provide clear and verified contact information including company emails and phone numbers for customer and security incident communication.
  4. Investigate and resolve the lack of WHOIS registration data to improve domain legitimacy and trust.
  5. Enhance accessibility features to meet compliance standards and improve user experience for all users.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
Envoyer ses courriers de résiliation en recommandé sans se déplacer, c'est possible avec Lettre Résiliation ! Vous n'avez plus besoin de vous déplacer à La Poste, et vous gagnez du temps ! Un service de résiliation complet avec modèles de lettre, adresses de résiliation, envoi et suivi en ligne.
Key services
Letter templates for contract termination, Online sending of registered letters with acknowledgment of receipt, Real-time tracking and proof of sending
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Google Analytics, Bing UET, jQuery UI, Tailwind CSS, Lite YouTube Embed, Skeepers Carousel, AppConsent TCF2
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Use of Google Tag Manager and Bing UET with consent management
  • No exposed sensitive data in HTML
  • Secure forms with autocomplete off on search input

Analytics and tracking

Services
Google Analytics, Bing UET
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google Adsense, Bing Ads
Tracking pixels
Bing UET
Marketing tools
AppConsent TCF2
Transparency
good

Site quality

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

Key observations

  1. Website provides a specialized online service for sending registered termination letters via La Poste in France.
  2. Content is in French and targets French consumers.
  3. No WHOIS data available, domain may be unregistered or recently expired.
  4. No explicit privacy policy or terms of service pages detected in the provided HTML.
  5. Consent management scripts are present indicating some level of GDPR compliance effort.
  6. High volume of verified customer reviews with good average rating.
  7. Use of modern web technologies and tracking tools.
  8. No contact emails or phone numbers explicitly found in the HTML content.
  9. No security.txt or vulnerability disclosure information found.
Technical notes

Notes

The website uses a modern tech stack including Google Tag Manager, Google Analytics, Bing UET, jQuery UI, Tailwind CSS, and Lite YouTube embeds. Consent management is implemented via AppConsent TCF2 scripts, indicating GDPR awareness. The site is mobile optimized with responsive design and good navigation clarity. Performance is moderate with asynchronous loading of scripts and preloading of fonts and images. No CMS was explicitly detected. Hosting provider details are not available from the HTML. The technical implementation is solid but could benefit from enhanced accessibility and explicit SEO metadata improvements.
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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