The short version: there are no accounts, no advertising trackers and nothing is sold. The site sets one anonymous cookie to count games, and your statistics and settings stay in your own browser.
cid cookie: a random id with no link to who you are. It lets the site count a deal once rather than on every reload, show how many people are playing right now, and keep one entry per player on the daily board. It expires after one day.The country comes from Cloudflare (see below) as a two-letter code. Your IP address is used only to stop scripts from flooding the site: the per-minute limits live in memory, and the daily limit on contact messages stores a scrambled form of the address that cannot be turned back and is deleted after a day.
Page views are counted with Plausible Analytics, self-hosted, which sets no cookies and collects no personal data. It reports totals such as visits, pages, countries and referring sites, never individual visitors. When you open or win a daily game it also counts which daily it was, whether the page ran inside another site, and whether this browser opened a daily on an earlier day (yes or no). No id or date goes with it.
The site is delivered through Cloudflare, which caches pages and blocks attacks. Like any network your browser talks to, it processes your IP address to deliver the page.
To ask what is stored, or to have a daily board entry, share link or message removed, write through the contact form.