How can I buy on CoinMarketCap?

Hello there, I'm curious about making purchases on CoinMarketCap. Could you please guide me through the process? I've heard it's a popular platform for tracking cryptocurrency prices, but I'm not sure how to actually go about buying on it. Do I need to set up an account first? Are there any fees involved? And how secure is the platform? I'd appreciate any information you can provide to help me navigate this process. Thank you in advance for your assistance.