You made a good tool, you will end with generation of thousands of dollar as ad revenue, please help the visitors too by letting them search by wallets instead of private keys, if they already have private keys, there is no need of using your tool. Visitor needs private key for particular wallet address, so make search available for wallets.
Did you read anything about how this works....obviously not, keys are generated on the fly, there isn't a database big enough to store this data. SO THERE IS NOT A WAY TO SEARCH FOR A SPECIFIC ADDRESS!