onchainwho

Check a wallet before you trust it

How old it is, who funded it first, and who it trades with. Across every chain we can read, in ten seconds.

Or look up a name —vitalik.ethjesse (Base)cobiecdixon.eth

10 chains in one search — Ethereum · Solana · Tron · TON · Hyperliquid · Base · Arbitrum · Optimism · Polygon · Avalanche

BSC is not dated yet — a wallet active there is still flagged.

A real lookupvitalik.eth→

Oldest record found

10 years 11 months

first seen 2015-09-28 on Ethereum

First funded by

0x1db3…6ee6

The wallet that paid in first

Most traded with

  • 0xe02b…5f5116
  • 0xdd23…802e15
  • 0x4e59…956c13

You do not need to know who someone is to see how their wallet has behaved. Whatever identity an address has published is shown too, ranked by how it was verified. Gaps are shown as gaps, and nothing here is a guess.