Blockchain explorer is defined as a website that provides a search service for a blockchain’s data.
Because blockchains are public data, many websites have been built to let you explore their data. These tools are known as blockchain explorers. Using a blockchain explorer, you can see every transaction you ever made, see the details of specific transactions, and much more.
Just make sure you’re using a blockchain explorer that has access to your blockchain. Some blockchain explorers only have access to one blockchain, like Bitcoin.
The phrase, “blockchain explorer” is sometimes shortened just to “block explorer”.