Check a Wallet Address
Whether an address has been frozen, blacklisted or sanctioned — and, just as importantly, what a clean answer does not mean.
This runs entirely in your browser. The address is never sent to us and we keep no record of what you looked up.
What this can and cannot tell you
It answers one narrow question: has an authority or a token issuer already acted against this address? That is a matter of public record — a blacklisting written into a token contract on a public blockchain, or a listing on a sanctions register.
It cannot tell you whether an address is about to defraud you. Our record is backward-looking by construction: it is a list of things that have already happened. A fraud running today is using an address that has not happened to anyone yet.
This is why we will not give you a risk score, and why you should distrust any tool that does. A score implies a prediction. What we have is a record.
What we cover, and what cannot be covered
Sanctions designations: twenty asset types. Bitcoin, Ethereum, TRON, Litecoin, Monero, Bitcoin Cash, Dash, Zcash, Solana, XRP, Dogecoin and more — because a sanctions authority can designate an address on any chain.
Issuer freezes: TRON and Ethereum only. A freeze needs an issuer who can act — Tether and Circle can freeze USDT and USDC balances at the contract level. Bitcoin has no issuer, so a Bitcoin balance cannot be frozen this way at all. That is a fact about how the asset works rather than a hole in our data, and the result will say so rather than implying we looked and found nothing.
Where the record comes from
- Issuer blacklists — the freeze functions in the USDT and USDC contracts on TRON and Ethereum, read directly from the chain. When Tether or Circle freezes a balance, the transaction that did it is public.
- The US OFAC Specially Designated Nationals list, which publishes digital-currency addresses alongside its designations. We read the full list directly from the Treasury rather than a third party’s copy of it — it is a work of the US federal government and therefore in the public domain.
12,108 addresses · 11,528 frozen or blacklisted · 961 OFAC-designated across 20 asset types · most recent freeze 2026-08-15
Formats we do not recognise
If you paste something we cannot identify as an address, we will tell you we cannot answer rather than returning an empty result that looks like a clean one. Silence and a clean bill of health are different things, and most tools in this field conflate them.
What we learn about you
Effectively nothing. Your browser hashes the address and downloads one of 256 fragments of the record; the comparison happens on your device. Our server sees which fragment was requested, and each fragment covers roughly 47 addresses out of 12,108. We never see the address, we keep no search log, and there is nothing here for anyone to later demand or leak.