Coins & networks

What Is a Block Explorer?

Basics Also known as what is a block explorer how to use a block explorer blockchain explorer how to check a transaction

In short

A block explorer is a search engine for a blockchain. Every transaction, address and block on a public chain is recorded permanently and visible to anyone, and an explorer is the interface that lets you read it. No account, no permission and no fee.

What an explorer shows

What you can look up

Three kinds of thing, and each answers different questions.

A transaction

Paste a transaction hash and you see sender, recipient, amount, fee, timestamp and how many confirmations it has collected.

An address

Paste a wallet address and you see its current balance and its entire transaction history, going back to first use.

A block

Less commonly needed, though it shows every transaction included and which validator produced it.

How to read a transaction page

Four fields carry almost all the useful information.

Status

Success, pending or failed. A failed transaction still consumed its gas, which surprises people.

Confirmations

How deep the transaction sits. This is what determines whether a merchant treats a payment as final.

From and to

The addresses. Check the destination against what was expected, because a transfer to the wrong address is a completed transfer as far as the network is concerned.

Value and fee

The amount moved and what it cost. A recipient seeing less than expected usually finds the explanation here.

Reading a token transfer

For token transfers, look at the token transfer section rather than the top-level value, which often reads zero because the native coin did not move.

What it cannot tell you

Who anybody is.

A public chain is pseudonymous. Addresses carry no names, and an explorer shows activity without identity. Labels do appear next to well-known addresses, and they come from the explorer’s own research rather than from the chain.

It also cannot tell you whether funds are clean. Some explorers display risk indicators, and proper screening is a licensed service described in the entry on KYT.

Which explorer to use

Which explorer for which network

Each chain has its own, and using the wrong one is why a hash sometimes appears not to exist.

  • Bitcoin: mempool.space, blockchain.com
  • Ethereum: Etherscan
  • TRON: Tronscan
  • Solana: Solscan, Solana Explorer
  • BNB Chain: BscScan
  • TON: Tonscan, Tonviewer

Multi-chain explorers exist and cover the common networks in one interface. For occasional checking they are convenient; for anything detailed the chain’s own explorer shows more.

Why a merchant uses one

One scenario, and it recurs constantly.

A customer says they paid and the order has not updated. The merchant asks for the hash, opens it in the explorer, and thirty seconds later knows which of four things happened: still confirming, wrong network, short amount, or never sent.

A payment gateway does this automatically, matching transfers to orders and recording the hash against each payment. The explorer remains the tool for anything a human needs to check by hand, and the setup guide covers where that fits.

Frequently asked

Yes, and no account is needed.

No. Chains record addresses, not identities.

Almost always the wrong explorer for that network.

Yes, by looking up the address. Viewing requires no keys.

Not to the address owner. The explorer operator sees your request like any website would.

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