How Does a Private Transaction Relay on a DEX Work?

A private transaction relay allows a user to send a transaction directly to a block builder or validator without broadcasting it to the public mempool first. This keeps the transaction details hidden until it is included in a block.

By bypassing the public mempool, the relay prevents front-running bots from detecting and exploiting the pending trade, ensuring the user gets better execution.

How Does a “Private Transaction Relay” Help Mitigate the Risk of MEV and Front-Running?
Do Private Transaction Relays Guarantee Zero Front-Running Risk?
What Is the Role of a Private Transaction Relay in the MEV Mitigation Process?
What Is a Private Transaction Relay and Why Is It Effective against MEV?
How Does a Block Builder Prevent Self-Front-Running?
How Can a User Submit a Transaction Directly to a Validator, Bypassing the Public Mempool?
How Does ‘Private Transaction Relay’ Attempt to Prevent Front-Running?
What Is the Difference between a Private Mempool and an Encrypted Mempool?

Glossar