In addition, you can judge whether it is an on-site fund or an off-site fund by purchasing channels and fund types. Purchase channels: On-site funds can only be purchased through the brokerage platform, while off-site funds can be purchased through the fund company official website and third-party sales platforms, such as Tian Tian Fund, Alipay and WeChat. Fund types: money funds, bond funds, mixed funds, stock funds and linked funds are all OTC funds, while ETF funds and closed-end funds are all OTC funds.