Whoa!

You check your wallet and the ETH still shows pending.

It can be unnerving when confirmations stall and gas fees spike.

Initially I thought it was a provider glitch, but then I realized the transaction's nonce and replacement rules were the real culprits, and that changed how I approach sending funds during network congestion.

I'm biased, but a good block explorer can save hours of guesswork.

Seriously?

Etherscan is a block explorer and analytics platform built for Ethereum.

It surfaces transactions, blocks, token movements, contract source code, and event logs in a way that even non-developers can follow.

On one hand it’s a simple lookup tool; on the other, it's a full debugging environment when you're tracking a problematic transfer or reverse-engineering a token contract — and that duality is what makes it indispensable.

For quick checks it's fast and reliable, though not perfect.

Okay, so check this out — a typical ETH transaction page on Etherscan shows a handful of fields that matter most.

Nonce, from, to, value, gas used, gas price (or base fee and priority fee post EIP-1559), and the status line are the headline items.

My instinct said focus only on gas price, but that was short-sighted; gas now has two moving parts after EIP-1559, and ignoring the base fee can cause surprises.

Actually, wait—let me rephrase that: you need to watch both base fee and max priority fee because miners (or validators) still prioritize the tip, yet the base fee dictates the burn, which affects how expensive the network feels overall.

That nuance matters when you're trying to speed up or cancel a stuck transaction.

Here’s what bugs me about naive gas estimation tools.

They often understate the gas limit when a contract call has complex internal loops or storage writes.

I once set what I thought was a safe limit and the transaction ran out of gas halfway through, reverting but still costing me the fee — very very annoying.

So I almost always add a 15–30% buffer to gas limits on unfamiliar contracts, and I read the internal transactions and logs to confirm where the cost is coming from.

That little habit has saved me ETH more than once.

(oh, and by the way...)

Internal transactions deserve a small primer because they're opaque to the wallet UI but visible on the explorer.

These are value transfers that happen within a contract execution rather than as standalone external transactions.

Look in the "Internal Txns" tab; if you don't, you might miss token transfers or callback payments that explain a balance change.

Trust me — missing that is an easy mistake to make when you're in a hurry.

Why I rely on the etherscan blockchain explorer

It’s one thing to see a pending tx; it's another to know whether it's waiting for a higher priority fee, stuck because of a nonce gap, or simply replaced by a different tx with the same nonce.

When I troubleshoot, I check the raw input data and the "Decoded Input Data" if available, then cross-check the contract's verified source to confirm what function was called.

On one occasion, my initial read suggested a token transfer failed due to a safemath check, though actually the UI mistake was that the DApp encoded parameters incorrectly — the explorer's decoded logs made the mismatch obvious.

That kind of layered inspection — from meta info to decoded events — is what makes the explorer worth bookmarking.

I'm not 100% sure every developer uses it the same way, but this workflow works for me and for a lot of folks I’ve helped troubleshoot.

Gas Tracker specifics — quick practical rules.

Check three numbers: current base fee, recommended priority fee, and the historical gas used by similar transactions.

If you're racing to get mined, bump the priority fee; if you're just waiting for a cheap window, target a lower priority fee and be patient.

On congested days, the mempool fills with replacement attempts and automated bots chasing tiny tips, so tiny tip increases can be ineffective; sometimes a larger, single jump is necessary to clear the queue.

Also, remember that gas estimators sometimes mispredict for complex contract interactions, so always account for contract complexity.

Advanced tricks for devs and power users.

Use the "Verified Contract" tab to confirm source code or to copy ABIs for local debugging.

Export transaction traces if you need to replay execution paths or to audit reentrancy vectors.

On one project I was auditing, a token's transfer hook triggered a nested call that only showed up in the trace, and that discovery prevented a major oversight.

APIs are great too — pull transaction history or token balances programmatically when building dashboards or alerts.

Just be mindful of rate limits and API keys, and cache aggressively because repeated lookups can add up.

Common pitfalls and quick fixes.

Nonce gaps: if you have a pending tx with a low nonce, later txs won't confirm until it resolves.

Replacement txs: use the same nonce and a higher gas price to replace — or use your wallet's “speed up/cancel” buttons when available.

Watch out for token approvals: verifying a contract address before approving allowances can prevent costly mistakes when interacting with unknown tokens.

Also, double-check contract verification status: a green verified badge matters — but read the code anyway if large sums are involved.