Are my funds kept on Zignaly?
No, your assets are kept safely on the exchange under the security measures they provide.
If you have an API-connected exchange account, your funds are kept on your exchange. Zignaly executes trading orders on your behalf, on the exchange.
Also, if you have a Zignaly exchange account, you have an option to deposit to your wallet and manage this directly on Zignaly, but your funds are kept securely in Binance (Zignaly exchange accounts are powered by Binance).
More information about it here.