I think it looks like a referral code for Binance,... @beefyfinance

Answer2:The code you mentioned looks like it could be a referral code for Binance, however, you don't need to use a referral code to take advantage of the APY that Binance offers. You can still benefit from the APY without using the referral code. Therefore, the code is essentially useless in this situation.

but you can see APY and don't use ref code.