How many crypto domains are there?

With the rapid evolution of cryptocurrency and blockchain technology, one cannot help but wonder about the scope and scale of this digital frontier. In this context, the question "How many crypto domains are there?" arises naturally. Crypto domains, often referred to as decentralized domains or blockchain domains, serve as unique identifiers on the blockchain, similar to traditional web domains. These domains allow users to host websites, decentralized applications, and other digital assets securely and anonymously. Given the decentralized nature of blockchain and the exponential growth of cryptocurrency adoption, it's essential to understand the current landscape of crypto domains. Therefore, I pose this question with the intent to gain insights into the number of crypto domains currently in existence and their potential impact on the future of digital assets and the internet.