CoW Swap

Exchange record

Intent-based decentralized exchange and aggregator using batch auctions and a competitive solver network. CoW Swap launched on Ethereum mainnet in April 2021 and remained active after an April 2026 domain-control incident affecting its frontend domain rather than the underlying protocol systems.

DEXActive

Also known as: CowSwap, CoW Protocol, CoW DAO, swap.cow.fi

Registry sequence

← Counos

CPDAX →

Key facts

Launch date

2021-04-28

Death date

—

Years

2021–—

Origin

Ethereum / Gnosis ecosystem

Confidence

high

Last verified

2026-06-15

URL handling

Preferred action

Use current URL handling based on status below.

URL status

Live verified

Original URL

https://swap.cow.fi/

Archived URL

View archived site

Summary

Timeline

CoW Swap launched on Ethereum mainnet

2021-04-28launchedmedium

CoW Swap was publicly announced and deployed to Ethereum mainnet as a production proof of concept for CoW Protocol's batch-auction and solver-based trading mechanism.

CoW Swap's cow.fi domain was temporarily taken over

2026-04-14hackcritical

Control of the cow.fi domain was transferred without authorization for several hours and an unsafe frontend was served. CoW DAO stated that the incident affected the domain and frontend rather than the underlying protocol systems.

Evidence

CoW Swap's 2nd birthday celebration

CoW DAO—official_bloghigh reliabilitylaunch_datearchive

CoW Protocol documentation

CoW DAO—official_statementhigh reliabilitystatusarchive

CIP-86: Discretionary grants program for victims of the cow.fi domain hijacking

CoW DAO Governance2026-04-23official_statementhigh reliabilityeventarchive

CoW DAO Monthly Recap: April 2026

CoW DAO2026-05-07official_bloghigh reliabilityeventarchive

CoW Swap archived application index

Internet Archive—archive_capturemedium reliabilityurl_historyarchive

Related records

DEX

DEX

DEX

DEX

Notes and record state

Record note

Entity-level umbrella record for the CoW Swap frontend and CoW Protocol trading system. CoW AMM remains a related product rather than a separate HEI entity in this pass.

Revision state

Records may be incomplete, approximate, contested, or revised as better evidence becomes available.

This record may be incomplete or revised. Dead-side entries prefer archived URLs over original domains. Dates, causes, and classifications may change when stronger evidence becomes available. Contact / corrections

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