Crypto-exchange checkers won't just scrap random data somewhere so there is a valid source.
As long as it is not CMC then that's true. CMC scrapper is terrible. They even list Vindax as the top exchange with a distinct wash trading.
I'd instead use Coingecko, their Trustscore is reliable, at least for now. It tracks the order book depth so you'll know the liquidity and not the (fake) adjusted volume.
Yes, I got the picture. That's why I suggested to OP to make a comparison at each of those site checkers to somehow make his own evaluation about the exchange he is asking. In that way, he will not just rely on the much popular CMC in terms of checking volume concerns.
I also preferred to used Coingecko compare to CMC nowadays.
