Data & ResearchSumo Pick Fact-checked 2026-08-14
Etherscan logo

Etherscan

Established 2015

The block explorer for Ethereum — verify every transaction, address and contract yourself.

Etherscan is Ethereum's public ledger interface: look up any transaction, wallet or smart contract, check gas prices, verify contract source code, and manage token approvals. If you transact on Ethereum, 'check it on Etherscan' should be your reflex before trusting anything.

Quick facts

Founded

2015

Category

Data & Research

Platforms

Web

Key facts

Block explorer, Ethereum, Token approvals

Pros

  • The definitive way to verify Ethereum activity
  • Gas tracker and token-approval management
  • Rich tools: ENS lookup, contract verification, APIs

Cons

  • Dense, technical interface for newcomers
  • Ethereum/EVM chains only (sister sites for L2s)
  • Ads and promoted content in free version

Best for

Verifying transactions, wallets and contracts

Fees

Free; API tiers for heavy use.

Security notes

Use the approval checker (tokenapprovalchecker) every few months to revoke permissions you no longer need — a top security habit.

explorerethereumverification

Frequently asked questions

What is Etherscan?
Etherscan is The block explorer for Ethereum — verify every transaction, address and contract yourself. Etherscan is Ethereum's public ledger interface: look up any transaction, wallet or smart contract, check gas prices, verify contract source code, and manage token approvals. If you transact on Ethereum, 'check it on Etherscan' should be your reflex before trusting anything.
Is Etherscan safe to use?
Use the approval checker (tokenapprovalchecker) every few months to revoke permissions you no longer need — a top security habit. As always, verify details on the official site before trusting funds to any service.
How much does Etherscan cost?
Free; API tiers for heavy use. Figures change — confirm current pricing on the official site before deciding.

Similar resources

CoinGecko logo

CoinGecko

est. 2014

Sumo Pick

The independent price-tracking giant — free market data, categories and an API used by half the industry.

Data & Research pricesmarket-data
View profile
DeFiLlama logo

DeFiLlama

est. 2020

Sumo Pick

The open-source, ad-free TVL dashboard that became DeFi's ground truth.

Data & Research defitvl
View profile
Blockchair logo

Blockchair

est. 2016

One explorer for 20+ blockchains, with a privacy-friendly stance and powerful search.

Data & Research explorermultichain
View profile