Blockchain is public. Every transaction ever made, every wallet balance, every contract interaction recorded permanently and visible to anyone.

Block explorer is the interface that makes it searchable.

Type in a wallet address. See every transaction it ever made, every token it holds, where funds came from, where they went. Type in a transaction hash. See exactly what happened, which wallet sent what, how much gas it cost, whether it succeeded. Type in a contract address. Read the code, check who deployed it, see every interaction.

Everything on-chain is public. Block explorer is the window into it.

The Main Ones

Etherscan for Ethereum and most EVM chains. Also runs Arbiscan for Arbitrum, Basescan for Base, Polygonscan for Polygon. Same interface, different chain.

Solscan for Solana. BscScan for BNB Chain. Each major chain has at least one primary explorer.

What Traders Actually Use It For

Verifying claims. Project says LP is locked. Check the LP token on the explorer. Either confirms it or doesn't. Two minutes.

Project says contract is renounced. Check the owner address. Renounced shows a burn address. Active admin address means someone still controls it.

Checking deployer wallet history. Find the deployer address. Look at what that wallet did before this launch. History of abandoned projects visible immediately.

Tracing connected wallets. Five wallets bought in block one. Check where they got funding. Same source as the deployer? Insider buying confirmed on-chain.

Token holder distribution. Every token has a holders tab showing every address ranked by balance. Top ten wallets holding 60% of supply is visible before you buy. Not hidden. Right there.

Reading a Contract

Verified contracts show source code. Every function readable. Mint function, blacklist function, owner functions, tax calculations. Everything the contract can do is visible.

Unverified shows only bytecode. Unreadable without significant effort. Legitimate projects verify their contracts because it builds trust. Unverified on a new token is a yellow flag.

Practical Block Explorer Checklist Before Buying

Contract verified? If not, no way to read what it actually does. Move on or accept you're buying blind.

LP tokens locked? Find the LP contract, check where LP tokens were sent. Time-lock contract address means locked. Deployer wallet holding LP tokens means they can pull liquidity any time.

Deployer wallet clean? Check full transaction history. Look for patterns of previous launches. Search the address on token analysis tools that flag known scammers.

Recent large wallet movements? Sort transactions by size. If wallets that bought early are starting to move tokens toward exchanges, distribution may have started before price shows it.

Block Explorer FAQ

Do you need an account?

No. Entirely public. No login. Open Etherscan, search any address or transaction.