Can you buy in CoinMarketCap?

Excuse me, I was wondering if I could clarify something about CoinMarketCap. I'm new to the world of cryptocurrency and I've heard a lot about this platform. Is it possible to actually buy cryptocurrencies through CoinMarketCap, or is it primarily a source of information and data on the market? I'm a bit confused as to whether I can use it as a trading platform or if I need to find another service for that purpose. Could you please shed some light on this for me?