Privacy notice
Last updated: 13 October 2026
Analytics preferences / Ustawienia analityki
Optional Google Analytics helps us understand visits and interactions. Enabling it allows Google Analytics cookies for up to 180 days. Advertising remains disabled. You can withdraw consent here at any time. Vercel measures page views without cookies independently of this choice.
Opcjonalne Google Analytics pomaga nam analizować wizyty i interakcje. Włączenie oznacza zgodę na cookies Google Analytics na okres do 180 dni. Reklamy pozostają wyłączone. Zgodę możesz wycofać tutaj w każdej chwili. Vercel niezależnie mierzy odsłony bez cookies.
Google Analytics: disabled / wyłączone
Who operates this website?
DC4I is operated by Dariusz Czechowicz AI & DB Solutions, registered in Poland. Contact: hello@dc4i.com.
Public prototype and contact
This website describes a public portfolio and product concepts. The contact brief prepares an email in your browser; it does not transmit or store your message on our server. You choose whether to send that email through your mail application.
Website operation
Hosting and security providers may process technical request information, such as IP address, browser user agent, time and requested URL, to operate and protect the website.
Website analytics
We use Google Analytics 4, provided by Google, to understand visits to the website and selected interactions such as contact-link clicks, preparing a contact brief and exploring a demo. The legal basis for optional Google Analytics is your consent (Article 6(1)(a) GDPR), which you can withdraw above.
Google Analytics is disabled until you enable it in Analytics preferences. Consent Mode v2 starts with analytics_storage, ad_storage, ad_user_data and ad_personalization denied. After your explicit choice, only analytics_storage becomes granted. Google may then read and write first-party _ga cookies for up to 180 days and process page URLs, referrers, browser/device and technical connection information. Advertising and Google Signals remain disabled. We do not send contact-form content, names, email addresses or other personal form fields as analytics events.
On the basis of our legitimate interest in improving the website (Article 6(1)(f) GDPR), we also use Vercel Web Analytics to count page views and estimate visitors without analytics cookies or browser storage. Vercel derives a temporary visitor hash from technical request information and discards the session after 24 hours. Page URL query strings and fragments are removed before sending; we do not send contact-form content or custom event data. See Vercel Web Analytics privacy information.
Google processes these requests under its own privacy terms. See our cookie notice and the Google Privacy Policy. You may object to processing based on legitimate interests by contacting us.
Your rights
You may contact us to request information about personal data processing, access, correction, deletion, restriction or portability where applicable, and to object or withdraw consent. You can also lodge a complaint with the Polish data protection authority (UODO).