Last updated: September 2026. This policy explains what happens to information when you use 21-blackjack-betting.com.
The site is owned and operated by JMG CONCEPT 2 SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ ("JMG Concept 2"), a Polish limited liability company. JMG Concept 2 is the data controller for anything collected through the site.
We do not run user accounts on a server. Your nickname, the hashed form of your email and password, your age confirmation and your coin balance are written to your browser's local storage on your own device. They stay there until you delete them.
Hashing happens in your browser through the standard Web Crypto API before anything is written. Your plain email address and password are never stored and never transmitted.
Because the pages are static, normal web server logs may record your IP address, browser type, requested page, referrer and timestamp. Our hosting provider keeps these for a short period for security and reliability. We do not use them to build profiles of individuals.
If you email us, we hold that message and your address so we can reply.
We set no advertising cookies and we do not sell data. Details of any measurement tools in use, and how to refuse them, are on the cookies page. Local storage used by the game is not shared with anyone.
Where we process personal data, we rely on legitimate interests for keeping the site secure and running, and on consent for any optional measurement. Storing your profile locally is done at your request when you register.
The site is for people aged 18 and over and is not directed at children. We do not knowingly collect data about minors. If you believe a child has used the site, clear the browser data on that device and contact us.
You can erase everything the site has stored about you in one step: open the account panel and choose Delete my data, or clear site data in your browser settings. For anything we hold in email, you may ask for access, correction or deletion by writing to [email protected]. You may also complain to the Information Commissioner's Office at ico.org.uk.
Web fonts are loaded from Google Fonts, which means your browser contacts Google's servers to fetch the font files. No game data is shared in that request. We use no other third-party game or tracking providers.
Updates appear on this page with a new date at the top.
This is a free social casino. The games are played with virtual coins only — there is no real-money betting, no deposits and no prizes. Entry is still limited to adults aged 18 and over.
By continuing you confirm your age. We keep that confirmation in your own browser storage and nowhere else.
Registration keeps your nickname and coin balance on this device. Your email and password are hashed with SHA-256 in the browser — nothing is sent anywhere and no server ever sees them.
Clearing your browser data removes the account and the coin balance for good. There is no recovery, because there is nothing stored on our side.