# Frontrunning protection over eth\_sendPrivateTransaction
**URL:** https://collective.flashbots.net/t/frontrunning-protection-over-eth-sendprivatetransaction/2314
**Category:** The Flashbots Ship
**Tags:** mev-share
**Created:** [September 1, 2023, 1:17pm UTC](https://collective.flashbots.net/t/frontrunning-protection-over-eth-sendprivatetransaction/2314 "2023-09-01T13:17:13Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@s5n](https://collective.flashbots.net/u/s5n)
#### Post date: [September 1, 2023, 1:17pm UTC](https://collective.flashbots.net/t/frontrunning-protection-over-eth-sendprivatetransaction/2314/1 "2023-09-01T13:17:13Z")
Hi everyone, I’m a novice user and looking for some usage clarification. In order to integrate frontrunning protection I’ve sent a couple of transactions to `relay-goerli.flashbots.net` using `eth_sendPrivateTransaction` method (with opted `builders:["default"]`) and got hashes in response. However, they did not applied on-chain and were expired and dropped. My first question here, Is there rpc call “works” on goerli as expected or I have missed something?
My second question here, I mean, I need some clarification, can I use `eth_sendPrivateTransaction` method for broadcasting from an application, or should I do it in more sophisticated way using `bundles`?
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### Author:  [@bert](https://collective.flashbots.net/u/bert)
#### Post date: [September 1, 2023, 2:22pm UTC](https://collective.flashbots.net/t/frontrunning-protection-over-eth-sendprivatetransaction/2314/2 "2023-09-01T14:22:22Z")
Hi! Could you send me some transaction hashes? I can check to see if anything went wrong on our side.
On your second question: you should be fine with eth\_sendPrivateTransaction.
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### Author:  [@s5n](https://collective.flashbots.net/u/s5n)
#### Post date: [September 1, 2023, 2:28pm UTC](https://collective.flashbots.net/t/frontrunning-protection-over-eth-sendprivatetransaction/2314/3 "2023-09-01T14:28:12Z")
I will try to do another one and let you know, `0x1d6b2d70a1422e30cfbfd9375f268842f45ffba9` is an auth signature addr which was associated with those transactions.
UPD: my recent tx `0x601a4fbd1189a492c8aa0f4f4ddf9bac207b0fa2b06e7da6611165829cea32f6` was accepted!
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### Author:  [@bert](https://collective.flashbots.net/u/bert)
#### Post date: [September 1, 2023, 2:40pm UTC](https://collective.flashbots.net/t/frontrunning-protection-over-eth-sendprivatetransaction/2314/4 "2023-09-01T14:40:15Z")
Ok cool, I pinged internally for folks to take a look. Goerli can be a bit unreliable because only a small number of validators are running mev-boost and other builders submit too
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### Author:  [@bert](https://collective.flashbots.net/u/bert)
#### Post date: [September 1, 2023, 2:40pm UTC](https://collective.flashbots.net/t/frontrunning-protection-over-eth-sendprivatetransaction/2314/5 "2023-09-01T14:40:20Z")
oh nice!
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### Author:  [@s5n](https://collective.flashbots.net/u/s5n)
#### Post date: [September 1, 2023, 2:41pm UTC](https://collective.flashbots.net/t/frontrunning-protection-over-eth-sendprivatetransaction/2314/6 "2023-09-01T14:41:09Z")
Many thanks to you for quick turn.
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### Author:  [@vitaliy](https://collective.flashbots.net/u/vitaliy)
#### Post date: [September 4, 2023, 12:59pm UTC](https://collective.flashbots.net/t/frontrunning-protection-over-eth-sendprivatetransaction/2314/8 "2023-09-04T12:59:48Z")
Hey!
We don’t have high inclusion rate on the goerli testnet. Here is an address of our builder [https://goerli.etherscan.io/address/0xb636a68f834b4d75af9edc5fb0138bb4758ed293](https://goerli.etherscan.io/address/0xb636a68f834b4d75af9edc5fb0138bb4758ed293) if you see tx there it means that we created a block. You can try increasing tx fees significantly so that our builder wins a block with your tx.