Key facts:
It is possible to link an Ethereum wallet to the L2Savings page to know the gas savings in L2.
The page says what the gas (cost per transaction) is on L2 and what it would be if it had been done on L1.
As is known in the cryptocurrency ecosystem, the cost per transaction (gas) is quite high in the main layer of Ethereum (L1) due to the large number of transfers that are made. That is why, as a solution to this, scalability solutions have emerged in second layers (L2), where it is possible to make cheaper transactions. This is something that can be verified on the L2Savings data explorer page.
L2Savings allows you to link a wallet to calculate the total cost of transactions made in L2 (Layer 2 or layer 2) and see how much it would be if they had been made in L1 (Layer 1 or layer 1). As reported by the platform, allows this because it reviews the history of movements made in the second layer and multiplies them by the average gas expense on the day of each transaction in the main layer. In this way, it shows the money savings achieved.
Precisely the platform allows you to see the money savings achieved in 3 second layers of Ethereum, which are Optimism, Arbitrum and ZkSync. If the user uses more than one of these, they can see the money savings achieved in each one and also the total in both.
To make use of this tool, you need to use and link on the Metamask page or a WalletConnect compatible wallet such as Ledger Live, Tokenary, Infinity Wallet, Wallet 3 and Ambire Wallet. Once that is done, the platform analyzes the data and shows in a graph the comparison of the GAS in L2 and what it would have been in L1.
![How much did you save by using second layers of Ethereum? This page tells you How much did you save by using second layers of Ethereum? This page tells you](https://www.criptonoticias.com/wp-content/uploads/2021/12/roll-ups.png)
In addition, it issues the following report as a summary: “You have sent [número] transactions in Optimism, Arbitrum, ZySync or all L2 and have spent [número] in gas. this cost you [número]which is worth now [cifra en USD]. If you had sent these transactions on the Ethereum Mainnet, you would have spent [número] in gas in [número] transaction fees, worth [cifra en USD] now. That means you saved [número] in fees, amounting to [cifra en USD] now. That’s it [número] cheaper!”.
The reason he uses the word “fees” is because gas is a commission that Ethereum miners receive.
What are some Ethereum second layer solutions?
The three second layer solutions explored by the platform are rollups, as CriptoNoticias has pointed out. These implementations allow transactions to be executed outside of the Ethereum main chain, without the need to pay high fees and with greater speed.
On the one hand, Optimism and Arbitrum are rollups of the “optimistic” type, which means that they consider all transactions valid and then allow a fraud test to be run. On the other hand, ZkSync is a roll-up of the “zero knowledge” type. Require proof of validity before accepting a transaction as valid.