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Last updated: October 2026
This website is run by Stefan. This policy explains which personal data is processed when you visit the site or get in touch, why that is needed, and what your rights are. The site has no advertising, no tracking pixels and no analytics.
Stefan is the controller for the processing described here. You can reach me through the contact form.
Contact form. When you send a message I receive your name, email address and message, and your company and phone number if you fill them in. I use this only to reply to you and follow up on your request. The legal basis is taking steps at your request and my legitimate interest in answering enquiries.
Technical details with a message. To protect against spam and to give context, every message also includes your IP address, an approximate location (city, region and country), your browser type and the time. The location is looked up by sending your IP address to the geolocation service ipwho.is. The legal basis is my legitimate interest in preventing abuse.
Email delivery. Messages are delivered to me by email through the email delivery provider SMTP2GO. They are not stored in a database on this website. I keep them only as long as needed to handle your request and the follow up.
Server and security data. The web server and Cloudflare, which delivers and protects the site, process technical data such as your IP address, the page you request, the time and your browser. This is needed to show the site and keep it secure. The site also keeps short lived counters per IP address to stop automated abuse, for example on the contact form and article views.
Blog. Article pages count how often they are viewed. This counter holds no personal data.
You choose which optional cookies are used in the cookie window. You can change that choice at any time with "Cookie settings" in the footer.
YouTube. Videos in articles are not loaded until you press play, and only if you have allowed embedded media. Playing a video connects your browser to YouTube (Google), which can set cookies and receive your IP address. I use the privacy enhanced YouTube domain. Without your permission the video is not loaded and you can open it on YouTube instead.
Links and sharing. The share buttons and links to other sites, such as LinkedIn, are plain links. They send no data until you click them, and the other site then applies its own privacy policy.
Fonts. The fonts are served from this website, so no data is sent to a font provider.
Hosting. The website runs on a server in Germany, within the European Union.
Messages and the details that come with them are kept only as long as needed for your request. Counters for abuse protection are deleted automatically after a short time. Server logs are kept for a limited time for security and troubleshooting.
You can ask me for access to your personal data, and for correction, deletion or restriction of it. You can object to processing based on my legitimate interest, ask for your data in a portable format, and withdraw consent at any time (for cookies via "Cookie settings"). Send your request through the contact form. You also have the right to complain to your data protection authority. In the Netherlands that is the Autoriteit Persoonsgegevens.
The site is only served over HTTPS and I limit what is collected to what is needed. No system is perfectly secure, but I take reasonable steps to protect your data.
I may update this policy when the site or the law changes. The date at the top shows the latest version.
Last updated: October 2026
By using this website you agree to these terms. If you do not agree, please do not use the site.
This is the personal website of Stefan, with information about my work in AI, MarTech and ecommerce and a blog with articles on these and related subjects.
The articles and other content are shared for general information and reflect my views at the time of writing. They are not legal, financial, security or other professional advice. Technology and prices change quickly, so check important details yourself before you act on them. Prices, plans and features mentioned in articles may be out of date.
The text, images, design and code of this website belong to me or are used with permission, unless stated otherwise. You may quote short parts of an article if you credit the source and link back to the original page. Copying or republishing complete articles or other content needs my written permission. Names and logos of other companies belong to their owners.
Please use the contact form for genuine enquiries only. Do not send spam, unlawful or harmful content, or attempt to disrupt or probe the website. I may block access to protect the site. How your details are handled is explained in the privacy policy.
The website links to third party sites and services. I have no control over them and am not responsible for their content, availability or privacy practices.
I do my best to keep the website available and accurate, but I give no guarantee that it is free of errors or interruptions, and the content is provided as it is. To the extent the law allows, I am not liable for damage that results from using the website or relying on its content. Nothing in these terms limits liability that cannot be limited by law, such as liability for intent or gross negligence.
I may change these terms and the website at any time. The date at the top shows the latest version. Continued use of the site means you accept the updated terms.
These terms are governed by Dutch law. Disputes are brought before the competent court in the Netherlands, unless mandatory consumer law says otherwise.
Questions about these terms? Use the contact form.
I use a few cookies to keep this site secure and working. Optional ones are only used if you allow them.
Read the privacy policy. You can change your choice at any time with "Cookie settings" in the footer.