Yes, we use our own liquidity reserves for exchanges. We are not using third-party liquidity providers at the moment.
Since you use your own liquidity and not third party liquidity providers, i think you need to provide information on your reserves in your website. I checked and i cannot find that information. It would help customers understand what your real-time liquidity is before making a swap, so they know what's available, what's not and how much you have per coin at that time.