Privacy Policy
Last updated: May 2026
1. Who are we?
Sieng is a sole proprietorship founded by Ruos Sieng, based in Turnhout, Belgium. We build AI-visible websites and chatbots for installers in renewable energy and renovation.
Contact: hello@sieng.nl
2. What data do we collect?
- —Contact form: name, email address, company name, message.
- —AI visibility check: the URL you enter for analysis.
- —Email correspondence: messages sent to hello@sieng.nl.
3. Why do we process your data?
| Purpose | Legal basis |
|---|---|
| Responding to your enquiry or quote request | Legitimate interest |
| Delivery of our services | Performance of contract |
| Sending the AI visibility report | Consent |
| Legal retention obligation (invoicing) | Legal obligation |
4. How long do we retain your data?
Contact data is retained for up to 2 years after last contact. Accounting records are kept for 7 years under Belgian law.
5. Who do we share your data with?
- —Vercel Inc. (hosting, US) — your website runs on their infrastructure.
- —Resend (email delivery) — for sending reports and confirmations.
We never sell your data to third parties.
6. Your rights
Under GDPR you have the right to access, rectification, erasure, restriction, portability and to object. Send a request to hello@sieng.nl. You may also lodge a complaint with the Belgian Data Protection Authority (GBA).