How to Check a Crypto Transaction on a Block Explorer: A Beginner Walkthrough

You send £200 of Ethereum to a friend. Your wallet says the payment was sent. Your friend says nothing has arrived. Someone is wrong, and it may not be either of you — the transaction could be sitting in a queue, waiting for its turn in a block. A block explorer is how you find out. It replaces a vague "pending" with a straight answer: here is the hash, here is the block, here is the fee, and here is how many confirmations it has. Ten minutes spent learning to read one saves an afternoon of worry.

What a block explorer actually is

A block explorer is a public website that reads a blockchain and presents it in human form. The chain itself is the ledger; the explorer is a search window onto it. Etherscan covers Ethereum, BscScan covers BNB Chain, mempool.space is a popular Bitcoin option, Solscan covers Solana, and Blockchair handles several chains at once. Most explorers let you switch networks from a dropdown.

Two things are worth stating plainly. Explorers cannot move, freeze or recover your funds — they only report what the chain already says. And no explorer will ever ask for your seed phrase or private key. If a site claiming to be an explorer requests either, close the tab. Fake explorer domains are a common phishing tactic, so type the address yourself or use a bookmark rather than clicking a search advert.

Finding your transaction hash

Every transaction has a unique identifier called a transaction hash, also written as tx hash or txid. It is the thing you paste into an explorer. You will find it in a few places:

• In your wallet: open the transaction, choose "Details" or "View on explorer", and copy the hash.
• On an exchange: go to withdrawal history, open the withdrawal, and copy the transaction ID shown there.
• On a payment page or invoice: many merchants display the hash alongside the order.

On Ethereum and other EVM chains the hash begins with 0x and runs to 66 characters in total. A Bitcoin txid is 64 characters with no prefix. Copy the whole string. One wrong character returns "no results", which is confusing rather than dangerous, but it wastes time.

Reading the page you land on

Paste the hash into the explorer's search bar and you get a page of fields. These are the ones that matter.

Status

Success, failed, or pending. Pending means the transaction is still in the mempool — the waiting room — and no block has included it yet. Success means the chain has recorded it permanently.

Block and timestamp

The block number tells you which block included the transaction. The timestamp gives you the moment in plain clock time.

From and To

From is the sending address. To needs a closer look. If you sent a token rather than the chain's native coin, the To field often shows the token's contract rather than your recipient, and the real recipient appears further down under token transfers. That detail trips up a lot of first-time checks.

Value and fee

Value is the amount of native coin moved — ETH, BTC, SOL. The fee is charged separately and is not part of that figure.

Nonce

Less exciting, occasionally useful. The nonce is the running count of transactions sent from that address. If one transaction is stuck, a later one from the same address usually cannot go through until it is resolved, because they share a queue.

Confirmations, and why one is not always enough

Every new block mined on top of the block containing your transaction adds one confirmation. Bitcoin blocks arrive roughly every ten minutes; Ethereum slots are about twelve seconds; some chains are faster still. Treat confirmations as a measure of how settled a payment is rather than a fixed rule.

Exchanges set their own thresholds before crediting a deposit. They may want a handful of confirmations on Ethereum and considerably more on chains where reorganisations are more plausible. If your transaction shows as successful on the explorer but your exchange balance has not moved, the explorer is not wrong — the exchange is waiting. Give it the time its published policy states, then contact support with the hash.

Understanding the fee

Fees are the part beginners skim and later regret. On Ethereum and similar chains, the fee is gas used multiplied by gas price. Gas is a unit of computational work — a plain transfer costs 21,000 gas — and gas price is quoted in gwei, where one gwei is a billionth of ETH. Multiply them and you have the fee in ETH. A transaction that does more work, such as swapping tokens through a contract, uses more gas and costs more.

Bitcoin works differently: the fee depends on how much space your transaction takes in a block, measured in virtual bytes, multiplied by the fee rate you chose. A payment built from many small inputs is bulkier, and therefore pricier, than one clean input.

One point that surprises people: on EVM chains, a failed transaction still costs gas. The network did the work even though the outcome was a revert. The money you meant to move usually stays put, but the fee is spent.

When something looks wrong

Most alarms have a mundane explanation. These are the common ones.

• Pending for hours. The fee was low for current demand. You can wait, or on some chains replace the transaction with a higher fee using the same nonce.
• Marked failed or reverted. The transfer did not complete. Check the error text, which often names the reason.
• Sent on the wrong network. USDT exists on several chains and they do not talk to each other. The funds are on the chain you used, and recovery depends on whether the recipient can access that chain — often they cannot.
• Missing memo or tag. Some chains require a destination tag when depositing to an exchange. If you left it blank, open a support ticket with the hash straight away.
• An unfamiliar token appears in your wallet. Confirm the contract address against the project's official source before treating any balance as real.

A two-minute routine worth keeping

1. Copy the transaction hash from your wallet or exchange history.
2. Paste it into a bookmarked explorer for the correct chain.
3. Check the status is Success, not Pending or Failed.
4. Note the block number and how many confirmations it has.
5. Confirm the recipient address character by character, and the token contract if one is involved.
6. Compare the value and fee against what you expected.
7. Screenshot the page. It is handy evidence if you ever need to raise a support ticket.

Reading an explorer is a habit rather than a skill, and it pays off fastest in the moments you least want to guess. If a large sum is involved, or you suspect fraud, speak to a solicitor or report it to your national fraud service — Action Fraud in the UK — rather than relying on advice from strangers in a chat group.

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