20-byte address
Contract lookup
Paste an address and see what is actually deployed at it: whether the source has been verified and on which chains, whether it is a proxy and what sits behind it, how close its bytecode runs to the size limit, and what it has been emitting lately.
What you get back
Verified source
The exact Solidity that compiles to the deployed bytecode, from Sourcify — not an uploaded file taken on trust.
Every chain at once
Verification is per chain. The same address is checked across all of them, so you land on one that has source.
Proxy resolved
EIP-1967 slots are read, so you see the implementation actually running rather than the shell in front of it.
Info from chain
Bytecode size against the deploy limit, code hash, and the events it has emitted in recent blocks.