For reasons of vanity as well as for those of industry health, it’s important to have a good method for ranking crypto exchanges and coins. But as the past few years have shown, no foolproof method has yet been developed.
CoinGecko
CoinMarketCap
This methodology assumes that the percentage of users trading on API and mobile app is the same across all exchanges. We are aware that this is a simplification but a required step to better present exchange volume data.