Research Shows MEV Blocker Leads RPC Performance Metrics

馃攳 RPCs Battle It Out

By CoW DAO
Jul 17, 2025, 3:13 PM
CoW DAOTwitter

A comprehensive study by researchers @VinyasAlex & @PaulJanicot evaluated four major MEV protection RPCs on Ethereum mainnet:

  • MEV Blocker
  • Merkle
  • Blink
  • Flashbots

The study analyzed 273 real transactions across multiple metrics:

  • Inclusion Speed: MEV Blocker fastest at 1.​34 blocks vs others 1.​49-1.​86
  • Swap Execution: 9-21 basis points better output than competitors
  • Success Rate: Near perfect transaction completion
  • User Rebates: Highest backrun returns

Testing covered various token pairs (ETH-USDC, ETH-GNO, ETH-AAVE) from blocks 21344521 to 21637136.​

Full research paper

Sources

New research just dropped: not all MEV-protecting RPCs are created equal. We tested the top RPCs live on Ethereum mainnet. Only one came out top across inclusion, execution, and rebates... You guessed it! It was MEV Blocker 鉀憋笍 Let's break it down 馃憞

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Why Speed Matters: MEV Blocker is the Fastest RPC! Speed isn't just a nice-to-have, it's everything. The faster your tx gets confirmed, the better your price, the higher your backrun, and the lower your chance of being rekt by slippage. So which RPC is the fastest?馃憞

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