This is an Ethereum Faucet running on the Goerli Testnet.
To prevent malicious actors from exhausting all available funds or
accumulating enough Ether to mount long running spam attacks,
this faucet requires some mining work to be done in exchange for
free testnet funds.
How does this work?
Just enter your ETH Address and start mining.
When you've collected enough ETH, stop mining and claim your rewards.
For a more detailed technical description, check out this post.
How to help the faucet?
Replenish the faucet by sending funds you don't need anymore to: