Learn what front running means in blockchain trading and how transaction ordering can affect DEX execution.
Quick judgment: this page is part of the Eonwell DEX knowledge path. It is designed to help readers understand swaps, liquidity, routes, approvals, network differences, and safer trading habits before using decentralized exchanges.
Core idea
Front running happens when another transaction is placed before a target transaction to benefit from expected price movement or state changes.
In public mempool systems, pending transactions can sometimes be observed before confirmation.
Front running is closely related to MEV and sandwich attacks.
Users can reduce some risk through careful slippage settings and reputable execution tools.
Practical checklist
- Understand pending transaction visibility.
- Avoid careless slippage.
- Watch price impact.
- Use protected routes when available.
Common mistake
A common mistake is treating a DEX swap as a simple button press. In reality, a swap may include wallet connection, network selection, token approval, routing, slippage tolerance, gas estimation, and final transaction confirmation. Each step should be checked before signing.
How this connects to Eonwell
DEX knowledge connects wallet safety, token verification, liquidity awareness, and presale judgment. Once a reader understands how decentralized exchanges work across Ethereum, BNB Chain, Solana, and Layer 2 networks, they can make cleaner decisions before interacting with new tokens or DeFi apps.