Last updated: September 2026
Data controller
Martin Lechêne
Contact: contact form
Website: martinlechene.com
Martin Lechêne is the data controller for personal data collected through this portfolio website.
What data we collect
Essential cookies and local storage
- Language preference (
site_localecookie): stores your chosen language (French or English) for up to one year. - Cookie consent (
martinlechene_cookie_consentin localStorage): records whether you accepted or rejected optional analytics.
These are strictly necessary for site functionality and consent management.
Analytics (optional, with your consent)
If you click Accept on the cookie banner, we use PostHog (EU hosting) to collect:
- Page views and navigation paths
- Locale switches and project link clicks
- Browser type, device type, and approximate location (country)
- Session duration
PostHog may set its own cookies and use localStorage. No analytics data is collected if you click Reject.
Contact
If you use the contact form, we process your name, email address and message content to respond to your enquiry. The message is delivered by Resend, which does not use it for any other purpose. Your IP address is only used to rate-limit submissions (abuse protection) and is not stored with the message.
Legal basis (GDPR)
| Processing | Legal basis |
|---|---|
| Essential cookies & language preference | Legitimate interest (Art. 6(1)(f)) — site functionality |
| Analytics (PostHog) | Consent (Art. 6(1)(a)) — only after you accept |
| Responding to contact messages | Legitimate interest / pre-contractual steps (Art. 6(1)(b)/(f)) |
Third parties
| Service | Purpose | Location |
|---|---|---|
| PostHog (optional) | Web analytics | EU (eu.i.posthog.com) |
| Bunny Fonts | Web font delivery | EU CDN |
| Resend | Delivery of contact form messages | United States (standard contractual clauses) |
| GitHub / LinkedIn / Twitch | External links (no data shared by us) | — |
We do not sell personal data to third parties.
Data retention
- Analytics events: retained by PostHog according to their default project settings (typically up to 7 years unless configured otherwise).
- Cookie consent choice: stored locally until you clear browser data.
- Contact messages: retained as long as needed to handle your request, then deleted unless a legal obligation requires longer retention.
Your rights
Under the GDPR, you have the right to:
- Access your personal data
- Rectify inaccurate data
- Erase your data ("right to be forgotten")
- Restrict processing
- Object to processing based on legitimate interest
- Data portability
- Withdraw consent at any time (clear localStorage and cookies, or contact us)
To exercise these rights, use the contact form. You may also lodge a complaint with the Belgian Data Protection Authority (APD/GBA).
Cookie banner
On your first visit, a banner explains our use of cookies. You can:
- Accept — optional PostHog analytics will load
- Reject — only essential cookies are used; no analytics
You can change your choice at any time by clearing site data in your browser.
Security
We apply standard security measures (HTTPS, security headers, access controls on admin areas). No system is 100% secure; please do not send sensitive data via unencrypted channels.
Children
This site is a professional portfolio and is not directed at children under 16.
Updates
We may update this policy. The "Last updated" date at the top will reflect changes. Continued use after updates constitutes acceptance of the revised policy.
Contact
Questions about this policy: contact form