Tensfeldt Consultancy and Advisory LTD, bul. "Vitosha" № 25, 1000 Sofia, Bulgaria — contact: info@blitzkurs.com
Your streak, accuracy, round count, mute preference, and (optionally) the name you enter for the leaderboard are stored locally in your browser via localStorage. This data never leaves your device unless you explicitly submit a leaderboard entry (see below). It is not accessible to us and isn't transmitted anywhere.
Bitcoin/Ethereum/Solana prices are streamed directly from Binance's public WebSocket API to your browser. Your device connects to Binance directly; no price data passes through our servers.
If you choose to submit a name after a new best streak, that name and score are sent to our database provider (Supabase) and displayed publicly to all visitors on the leaderboard. Don't submit a name you wouldn't want shown publicly. You can skip this at any time — it's entirely optional and never required to play.
We use Cloudflare Web Analytics, a cookie-free analytics tool, to see aggregate visitor counts. It does not use cookies or any client-side state, does not track you across sites, and does not collect personally identifiable information. No consent banner is required for this because no personal data or cookies are involved.
Hosting provider: Cloudflare, Inc., 101 Townsend St, San Francisco, CA 94107, USA. Standard server access logs (IP address, timestamp, requested page, browser type) may be processed automatically by the hosting provider for security and operational purposes, under Art. 6(1)(f) GDPR (legitimate interest in running and securing the site). Cloudflare acts as our data processor for hosting-related access logs.
Last updated: August 2026