Exchanges Research Platform | Coinpaprika
Reported Volume - Total volume we are getting directly from exchanges through their API without interference. It’s usually bigger than adjusted volume.
Reported Volume Liquidity - This tab shows comparison between reported volume by exchanges and real liquidity based on order books.
You can use this as an alternative of coinmarketcap, I found very coinpaprika very informative since it has 3 types of volume listed, adjusted, reported volume, reported volume liquidity.
With this, you can easily compare exchanges' volume, especially the Reported Volume Liquidity, it is based on the order books. You can use this to identify some exchanges' volume, I don't know if this kind of volume liquidity, we can identify an exchange that using fake volumes.