Privacy
Last updated June 21, 2026
dailyprog is built to be fun without collecting your personal data. Here's exactly what that means.
Your progress stays on your device
Your streak and per-puzzle attempts live only in your browser's local storage. They never leave your device and we never see them — clearing your browser data resets them.
No accounts, no tracking profiles
There's no sign-up and no login. We don't build a profile of you and we don't track you across other sites.
Code you submit
When you press Solve, your code is sent to our server, run once in an isolated sandbox to check it against the tests, and then discarded. We don't store it or link it to you.
Privacy-friendly analytics
We use a self-hosted, cookieless analytics tool (Umami) to count visits and see which puzzles people enjoy. It records aggregate, anonymous usage only — no cookies, no personal data, nothing that identifies you. The legal basis is our legitimate interest in understanding how the site is used; you can opt out by blocking the analytics script.
Cookies
We don't use tracking or advertising cookies. Your theme choice and progress are kept in local storage, not cookies — which is why you won't see a cookie consent banner: there's nothing to consent to.
Who runs this, and your rights
dailyprog is operated by Ata Kuyumcu, the data controller — full contact details are on the Legal notice page. Because we hold next to nothing about you, there's little to exercise rights over, but under the GDPR you can still ask what data we hold, request its deletion, or object to processing — and you can lodge a complaint with your local data protection authority (in the Netherlands, the Autoriteit Persoonsgegevens).
Changes to this policy
The site is in beta and may evolve. If this policy changes in a meaningful way, we'll update the date above.
Contact
Questions about your privacy or your data? Email hello@dailyprog.club.