Which is the biggest cryptocurrency exchange in the world?

I'm curious to know, which cryptocurrency exchange stands tall as the biggest in the world? Given the rapid evolution and expansion of the crypto market, it's imperative to stay informed about the leading platforms. With so many exchanges offering various services and features, it's crucial to identify the one that dominates the industry. Is it the one with the highest trading volume? The one with the widest range of cryptocurrencies available? Or perhaps, it's the exchange that boasts the most robust security measures? I'm eager to learn more about this as it could provide valuable insights into the current state of the crypto landscape.