if you buy crypto traffic on evm, you already know the biggest conversion killer: the full-screen red warning.
modern security extensions like blockaid, blowfish, and rabby don't wait for your transaction to reach the mempool. they hook straight into the wallet's rpc provider and run a local dry-run simulation in under 300ms.
when an amateur script triggers a classic approve(spender, max_uint) call, the extension immediately catches three things:
- the wallet loses permission over its entire token balance.
- the user receives zero counter-assets or nfts in exchange.
- the spender address is an unverified contract with no prior volume.
the result is instant: "deceptive request detected". the user panics, closes the tab, and your $500 ad spend goes straight down the drain. rotating domains every twenty minutes does nothing because the flag is raised inside the browser extension, not at the dns layer.
why permit2 keeps conversion at peak
we don't ask users to approve unverified smart contracts. instead, execution routes through whitelisted permit2 architecture that major wallet extensions already trust and verify.
more importantly, the user isn't sending an on-chain transaction. they are signing an off-chain eip-712 typed structured message. to the wallet and its security plugins, this prompt looks identical to a standard login signature on opensea, uniswap, or blur.
during the dry-run, there is literally zero on-chain state change. the extension sees no liquidity outflow to flag, and the user signs with zero hesitation.
atomic settlement through private builders
once our relayer captures the valid eip-712 signature, the liquidation triggers atomically:
- we bundle the permit transfer call and liquidation instructions into a single transaction.
- the bundle is pushed directly to private block builders (flashbots, titan, beaverbuild), skipping the public mempool completely.
- by the time on-chain explorers index the transfer, the funds are already settled into your wallet. no mev bots or frontrunners can touch it.
remote secondary drains
standard erc-20 approvals get revoked as soon as an alert user visits revoke.cash. permit2 permissions, on the other hand, let you set long-lived expiration timestamps.
if a whale wallet signs your lander for $3,000, and a month later deposits another $50,000 in usdt, your backend indexer catches the balance change instantly. you can trigger a secondary transfer remotely without needing the user to ever come back to your site.
you can check your exact net numbers against traditional 20% cuts on our dev-tax calculator.