L2EARN Token

Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

ERC20.constructor(string,string).name (#485) shadows:
- ERC20.name() (#496-498) (function)
ERC20.constructor(string,string).symbol (#485) shadows:
- ERC20.symbol() (#504-506) (function)
Rename the local variables that shadow another component.

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Pragma version^0.6.0 (#6) allows old versions
Pragma version^0.6.0 (#42) allows old versions
Pragma version^0.6.0 (#122) allows old versions
Pragma version^0.6.2 (#284) allows old versions
Pragma version^0.6.0 (#435) allows old versions
Pragma version^0.6.0 (#757) allows old versions
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

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Reentrancy in ERC20._approve(address,address,uint256) (#716-723):
External calls:
- ISafeCheck(_safeCheck).confirmLegalApprove(owner,spender,amount) (#719)
State variables written after the call(s):
- _allowances[owner][spender] = amount (#721)
Reentrancy in ERC20._transfer(address,address,uint256,bool) (#645-666):
External calls:
- (success,data) = address(_context).call(abi.encodeWithSelector(0x38cc4831)) (#651)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#663)
- _balances[recipient] = _balances[recipient].add(amount) (#664)
- _safeCheck = safeCheck (#655)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in ERC20._approve(address,address,uint256) (#716-723):
External calls:
- ISafeCheck(_safeCheck).confirmLegalApprove(owner,spender,amount) (#719)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#722)
Reentrancy in ERC20._transfer(address,address,uint256,bool) (#645-666):
External calls:
- (success,data) = address(_context).call(abi.encodeWithSelector(0x38cc4831)) (#651)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (#665)
Reentrancy in ERC20.transferFrom(address,address,uint256) (#589-593):
External calls:
- _transfer(sender,recipient,amount,true) (#590)
- (success,data) = address(_context).call(abi.encodeWithSelector(0x38cc4831)) (#651)
- _safeCheck != address(0) && ! ISafeCheck(_safeCheck).isLegalTransfer(sender,recipient,amount,flag) (#658)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#591)
- ISafeCheck(_safeCheck).confirmLegalApprove(owner,spender,amount) (#719)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#722)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#591)
Apply the check-effects-interactions pattern.

Additional information: link

Address.isContract(address) (#314-323) uses assembly
- INLINE ASM (#321)
Address._functionCallWithValue(address,bytes,uint256,string) (#407-428) uses assembly
- INLINE ASM (#420-423)
Do not use evm assembly.

Additional information: link

Different versions of Solidity is used:
- Version used: ['0.6.12', '^0.6.0', '^0.6.2']
- ^0.6.0 (#6)
- ^0.6.0 (#42)
- ^0.6.0 (#122)
- ^0.6.2 (#284)
- ^0.6.0 (#435)
- ^0.6.0 (#757)
- 0.6.12 (#825)
Use one Solidity version.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#407-428) is never used and should be removed
Address.functionCall(address,bytes) (#367-369) is never used and should be removed
Address.functionCall(address,bytes,string) (#377-379) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#392-394) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#402-405) is never used and should be removed
Address.isContract(address) (#314-323) is never used and should be removed
Address.sendValue(address,uint256) (#341-347) is never used and should be removed
Context._msgData() (#23-26) is never used and should be removed
ERC20._burn(address,uint256) (#693-701) is never used and should be removed
ERC20._setupDecimals(uint8) (#732-734) is never used and should be removed
SafeMath.div(uint256,uint256) (#222-224) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#238-244) is never used and should be removed
SafeMath.mod(uint256,uint256) (#258-260) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#274-277) is never used and should be removed
SafeMath.mul(uint256,uint256) (#196-208) is never used and should be removed
SafeMath.sub(uint256,uint256) (#165-167) is never used and should be removed
Remove unused functions.

Additional information: link

Low level call in Address.sendValue(address,uint256) (#341-347):
- (success) = recipient.call{value: amount}() (#345)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#407-428):
- (success,returndata) = target.call{value: weiValue}(data) (#411)
Low level call in ERC20._transfer(address,address,uint256,bool) (#645-666):
- (success,data) = address(_context).call(abi.encodeWithSelector(0x38cc4831)) (#651)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Variable Context._context (#34) is not in mixedCase
Variable Context._safeCheck (#35) is not in mixedCase
Variable ERC20._balances (#466) is not in mixedCase
Variable ERC20._totalSupply (#470) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#24)" inContext (#18-36)
Remove redundant statements if they congest code but offer no value.

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name() should be declared external:
- ERC20.name() (#496-498)
symbol() should be declared external:
- ERC20.symbol() (#504-506)
decimals() should be declared external:
- ERC20.decimals() (#521-523)
totalSupply() should be declared external:
- ERC20.totalSupply() (#528-530)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (#535-543)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#553-556)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (#561-563)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#572-575)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#589-593)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#607-610)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#626-629)
emitTransfer(address,address,uint256) should be declared external:
- ERC20.emitTransfer(address,address,uint256) (#677-680)
owner() should be declared external:
- Ownable.owner() (#788-790)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#807-810)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#816-820)
Use the external attribute for functions never called from the contract.

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Token seems to be untradeable: there is no PancakeSwap trading pair and no trading volumes. Ignore for presale.

Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.

Unable to find token contract audit

Unable to find KYC or doxxing proof

Unable to find audit link on the website

Unable to find token on CoinGecko

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Unable to find token on CoinMarketCap

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Token is not listed at Mobula.Finance

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Unable to find token on CoinHunt

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Young tokens have high risks of scam / price dump / death

Young tokens have high risks of scam / price dump / death

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank

Token is relatively young, but twitter if very old (probably it's fake).