Privacy

What we do not collect

  • No accounts, emails, or passwords
  • No persistent log of TXIDs, addresses, or blocks you search
  • No tracking cookies, advertising IDs, or fingerprinting

Stored in your browser only

The following data lives in localStorage and never leaves your browser.

  • Language (KO/EN/JA) and theme (dark/light) preferences
  • Favorite transactions, blocks, and addresses
  • Recent search history and address labels

Clear your browser storage to remove all of it.

Anonymous analytics

Page traffic is measured only by a self-hosted Umami instance at umami.txid.uk. Umami does not set identifying cookies.

Third-party data sources

Your browser calls the following public APIs directly to fetch blockchain and price data. Your IP is shared with these services when calls are made.

  • mempool.space blocks, transactions, fees, mempool
  • api.txid.uk BTC price (relayed server-side from CoinGecko — your browser does not contact CoinGecko directly)

Questions

Send privacy questions to btc at txid.uk or DM @bc1qwerty on X.