Etherscan

Etherscan: 

Tokens built on the Ethereum network must adhere to the ERC-20 standard in order to be considered “fungible.” In contrast to the more well-known non-fungible tokens (NFTs), a fungible token may be exchanged for another token of the same kind.

Etherscan is a block explorer that exposes information about the Ethereum blockchain, including transactions, smart contracts, addresses, and more, for anyone to see. Etherscan is a search engine that enables you to browse through all of the public Ethereum transactions. All coins, smart contracts, and wallet addresses may be verified with a single transaction hash (transaction ID).