Privacy Policy and Legal Notice
This page sets out the privacy policy of fast-growth.fr, the Fast Growth Advisors website, together with its legal notice. Your data is used only to answer your requests and deliver your diagnostic reports, and it is kept for 24 months. Measurement cookies are set only with your consent. You can access, correct or erase your data at any time.
Last updated: February 2026
1. Legal Information and Cookies
Publisher
The website fast-growth.fr, which presents Fast Growth Advisors, is published by:
Hervé Dhélin
SAS (simplified joint-stock company), Président
5 rue des Suisses, 75014 Paris, France
Email: herve@fast-growth.fr
Publication director: Hervé Dhélin
Hosting
OVH (OVHcloud), 2 rue Kellermann, 59100 Roubaix, France.
Cookie Policy
This site sets technically necessary cookies required for WordPress to function (session management, CSRF (cross-site request forgery) protection) and, only if you accept them, the Google Analytics measurement cookies (_ga and _ga_*, 13 months at most). We use no advertising cookies and no tracking pixels.
Your choice is kept in your browser for 6 months, then asked again. You can change it at any time with the Cookie settings link at the bottom of every page.
Intellectual Property
All content on fast-growth.fr (text, images, SVG illustrations, code) is the exclusive property of Hervé Dhélin / Fast Growth Advisors unless otherwise stated. Reproduction without written authorisation is prohibited.
Applicable Law
Any dispute related to the use of fast-growth.fr is subject to French law. Exclusive jurisdiction is granted to the competent courts of Paris.
2. Privacy Policy (GDPR)
Data Controller
The data controller for fast-growth.fr, the Fast Growth Advisors website, is Hervé Dhélin, reachable at herve@fast-growth.fr. We process personal data in compliance with EU Regulation 2016/679 (GDPR) and French Law n° 78-17 of 6 January 1978.
What data we collect
We collect only the data our services strictly require:
Contact forms and quiz: first name, last name, company name, professional email address. This data is used solely to respond to your request or deliver your diagnostic report. Legal basis: legitimate interest (pre-contractual relationship).
Messaging Health Check quiz: your answers and professional email address are processed to generate a personalised diagnostic. Your company’s homepage is fetched and analysed by AI (Claude API by Anthropic) to compare your stated positioning with your public website content.
No data is sent to third parties beyond this analysis. Legal basis: consent (you submit the quiz voluntarily).
Observatory letter: your work email address, the date you subscribed, and the language and page you subscribed from. This data is used only to send you the twice-yearly letter of the Message-Market Fit Observatory, from Hervé Dhélin’s own mailbox, with no email marketing platform. Legal basis: consent, given by ticking the box on the form. You can withdraw it at any time by replying to any letter or by writing to herve@fast-growth.fr.
Navigation data: with your consent, we measure site traffic with Google Analytics 4, loaded through Google Tag Manager: pages viewed, traffic sources, diagnostic requests. Google Analytics then sets the _ga and _ga_* cookies (13 months at most). Without your consent, no measurement cookie is set. Your personal data is neither sold nor shared with advertisers. Legal basis: consent.
Data retention
Contact form data and quiz results are retained for 24 months, then deleted. You may request earlier deletion at any time. Addresses subscribed to the Observatory letter are kept until you unsubscribe, then deleted.
Your rights
Under GDPR, you have the right to access, rectify, erase, restrict processing, data portability, and object to processing of your personal data. To exercise these rights, contact herve@fast-growth.fr. Expect a reply within 30 days. You also have the right to lodge a complaint with the CNIL (Commission Nationale de l’Informatique et des Libertés).
Third-party services
Hosting: OVH (France). Data remains in the EU.
AI analysis: Anthropic Claude API (for quiz analysis only). Data transmitted: homepage text content and quiz answers. No personal data beyond professional email is transmitted.
Email: sent via the hosting server’s native SMTP (Simple Mail Transfer Protocol) service. The site uses no third-party email marketing platform.
Traffic measurement: Google Analytics 4 and Google Tag Manager (Google Ireland Limited), only with your consent. Data may be transferred to the United States under the EU-US Data Privacy Framework. Retention: 14 months. Ahrefs Web Analytics for aggregate measurement.