Privacy
What this site stores, where it stores it, and how to ask for removal.
This is a personal site run by Daniel Castro. It does not sell, rent or share data with advertisers, and it sets no tracking cookies.
Newsletter #
Subscription happens through Substack’s widget, embedded in the site. Your email goes straight to Substack, which stores the list and delivers the newsletter. This site keeps no copy of your address: the field you fill in belongs to Substack, and nothing typed into it passes through here.
Alongside the address, Substack records whatever the platform records for any subscriber. Their policies govern that data: Terms of Use and Privacy Policy .
To leave, use the unsubscribe link at the bottom of any issue. It takes effect immediately and does not depend on me.
Contact form #
The contact form collects what you type into it: name, email, organisation (optional), subject and message. Messages arrive through Netlify’s form service and are used for one thing only — replying to you. They never become a mailing list.
Audience measurement #
The site uses Umami Cloud to count visits. It is cookieless and does not identify individuals: it records page views, referrer and device type, in aggregate. There is no way to tell who visited what, which is why there is no consent banner to show.
Measurement runs on the production address only. Deploy previews and local builds report nothing.
Hosting #
The site is served by Netlify , which keeps its own access logs, as any web server does.
Your rights #
Brazil’s data protection law (LGPD) gives you, among other rights, the right to confirm whether data about you is held here, to access it, to correct it and to ask for its deletion. To exercise any of them over what this site stores — in practice, contact form messages — write to me . For newsletter data, the request goes to Substack.