According to CoinMeta, users asked on Reddit whether a website that generates a random BIP39 mnemonic and checks for balances is legal. The concept of the website is that users click a button to generate a random 12-word BIP39 mnemonic, and the website derives wallet addresses from this phrase to check if these addresses have any balance (the result is that there is no balance). Users can click “Next” to get a new random phrase and check again, with the aim of visually demonstrating how slim the possibility of randomly generating a wallet with existing funds is, emphasizing the security of the mnemonic.