SHIKUMA [Shirokuma Coin] Token

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

Reentrancy in ShirokumaCoin._transfer(address,address,uint256) (#1046-1090):
External calls:
- swapAndLiquify(contractTokenBalance) (#1077)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#986-992)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1077)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1089)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#942)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1040)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#997)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#839)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1010)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1041)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#999)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1011)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#841)
- _tokenTransfer(from,to,amount,takeFee) (#1089)
- _rTotal = _rTotal.sub(rFee) (#871)
- _tokenTransfer(from,to,amount,takeFee) (#1089)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#944)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1009)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#838)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#998)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#840)
Apply the check-effects-interactions pattern.

Additional information: link

Contract ownership is not renounced (belongs to a wallet)

Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#207-228):
- (success,returndata) = target.call{value: weiValue}(data) (#211)
Low level call in Address.sendValue(address,uint256) (#141-147):
- (success) = recipient.call{value: amount}() (#145)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

ShirokumaCoin.addLiquidity(uint256,uint256) (#1024-1037) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
Ensure that all the return values of the function calls are used.

Additional information: link

ShirokumaCoin.allowance(address,address).owner (#755) shadows:
- Ownable.owner() (#405-407) (function)
ShirokumaCoin._approve(address,address,uint256).owner (#1016) shadows:
- Ownable.owner() (#405-407) (function)
Rename the local variables that shadow another component.

Additional information: link

ShirokumaCoin.setTaxFeePercent(uint256) (#900-902) should emit an event for:
- _taxFee = taxFee (#901)
ShirokumaCoin.setMaxTxPercent(uint256) (#856-860) should emit an event for:
- _maxTxAmount = _tTotal.mul(maxTxPercent).div(10 ** 2) (#857-859)
ShirokumaCoin.setLiquidityFeePercent(uint256) (#852-854) should emit an event for:
- _liquidityFee = liquidityFee (#853)
Emit an event for critical parameter changes.

Additional information: link

Reentrancy in ShirokumaCoin._transfer(address,address,uint256) (#1046-1090):
External calls:
- swapAndLiquify(contractTokenBalance) (#1077)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#986-992)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1077)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1089)
- _liquidityFee = _previousLiquidityFee (#971)
- _liquidityFee = 0 (#966)
- _tokenTransfer(from,to,amount,takeFee) (#1089)
- _previousLiquidityFee = _liquidityFee (#963)
- _tokenTransfer(from,to,amount,takeFee) (#1089)
- _previousTaxFee = _taxFee (#962)
- _tokenTransfer(from,to,amount,takeFee) (#1089)
- _tFeeTotal = _tFeeTotal.add(tFee) (#872)
- _tokenTransfer(from,to,amount,takeFee) (#1089)
- _taxFee = _previousTaxFee (#970)
- _taxFee = 0 (#965)
Reentrancy in ShirokumaCoin.swapAndLiquify(uint256) (#1091-1112):
External calls:
- swapTokensForEth(half) (#1103)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#986-992)
- addLiquidity(otherHalf,newBalance) (#1109)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1109)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1109)
- _allowances[owner][spender] = amount (#1020)
Reentrancy in ShirokumaCoin.transferFrom(address,address,uint256) (#764-768):
External calls:
- _transfer(sender,recipient,amount) (#765)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#986-992)
External calls sending eth:
- _transfer(sender,recipient,amount) (#765)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#766)
- _allowances[owner][spender] = amount (#1020)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in ShirokumaCoin._transfer(address,address,uint256) (#1046-1090):
External calls:
- swapAndLiquify(contractTokenBalance) (#1077)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#986-992)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1077)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#1044)
- _tokenTransfer(from,to,amount,takeFee) (#1089)
- Transfer(sender,recipient,tTransferAmount) (#1002)
- _tokenTransfer(from,to,amount,takeFee) (#1089)
- Transfer(sender,recipient,tTransferAmount) (#1014)
- _tokenTransfer(from,to,amount,takeFee) (#1089)
- Transfer(sender,recipient,tTransferAmount) (#844)
- _tokenTransfer(from,to,amount,takeFee) (#1089)
Reentrancy in ShirokumaCoin.transferFrom(address,address,uint256) (#764-768):
External calls:
- _transfer(sender,recipient,amount) (#765)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#986-992)
External calls sending eth:
- _transfer(sender,recipient,amount) (#765)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1021)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#766)
Reentrancy in ShirokumaCoin.swapAndLiquify(uint256) (#1091-1112):
External calls:
- swapTokensForEth(half) (#1103)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#986-992)
- addLiquidity(otherHalf,newBalance) (#1109)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1109)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1029-1036)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1021)
- addLiquidity(otherHalf,newBalance) (#1109)
- SwapAndLiquify(half,newBalance,otherHalf) (#1111)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#452-457) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now > _lockTime,Contract is locked until 7 days) (#454)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#114-123) uses assembly
- INLINE ASM (#121)
Address._functionCallWithValue(address,bytes,uint256,string) (#207-228) uses assembly
- INLINE ASM (#220-223)
Do not use evm assembly.

Additional information: link

Address.sendValue(address,uint256) (#141-147) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#192-194) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#368-371) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#202-205) is never used and should be removed
Context._msgData() (#23-26) is never used and should be removed
SafeMath.mod(uint256,uint256) (#352-354) is never used and should be removed
Address._functionCallWithValue(address,bytes,uint256,string) (#207-228) is never used and should be removed
Address.isContract(address) (#114-123) is never used and should be removed
Address.functionCall(address,bytes,string) (#177-179) is never used and should be removed
Address.functionCall(address,bytes) (#167-169) is never used and should be removed
Remove unused functions.

Additional information: link

ShirokumaCoin._previousTaxFee (#683) is set pre-construction with a non-constant function or state variable:
- _taxFee
ShirokumaCoin._rTotal (#675) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
ShirokumaCoin._previousLiquidityFee (#686) is set pre-construction with a non-constant function or state variable:
- _liquidityFee
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Variable ShirokumaCoin._taxFee (#682) is not in mixedCase
Variable ShirokumaCoin._maxTxAmount (#694) is not in mixedCase
Parameter ShirokumaCoin.setSwapAndLiquifyEnabled(bool)._enabled (#862) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#483) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#500) is not in mixedCase
Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#482) is not in mixedCase
Parameter ShirokumaCoin.calculateLiquidityFee(uint256)._amount (#953) is not in mixedCase
Variable ShirokumaCoin._liquidityFee (#685) is not in mixedCase
Function IUniswapV2Router01.WETH() (#522) is not in mixedCase
Parameter ShirokumaCoin.calculateTaxFee(uint256)._amount (#947) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#24)" inContext (#18-27)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable ShirokumaCoin._transferBothExcluded(address,address,uint256).rTransferAmount (#837) is too similar to ShirokumaCoin._transferFromExcluded(address,address,uint256).tTransferAmount (#1008)
Variable ShirokumaCoin._transferToExcluded(address,address,uint256).rTransferAmount (#996) is too similar to ShirokumaCoin._transferStandard(address,address,uint256).tTransferAmount (#1039)
Variable ShirokumaCoin._transferBothExcluded(address,address,uint256).rTransferAmount (#837) is too similar to ShirokumaCoin._transferToExcluded(address,address,uint256).tTransferAmount (#996)
Variable ShirokumaCoin._transferToExcluded(address,address,uint256).rTransferAmount (#996) is too similar to ShirokumaCoin._getValues(uint256).tTransferAmount (#876)
Variable ShirokumaCoin._getValues(uint256).rTransferAmount (#877) is too similar to ShirokumaCoin._transferFromExcluded(address,address,uint256).tTransferAmount (#1008)
Variable ShirokumaCoin._transferBothExcluded(address,address,uint256).rTransferAmount (#837) is too similar to ShirokumaCoin._getTValues(uint256).tTransferAmount (#910)
Variable ShirokumaCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#918) is too similar to ShirokumaCoin._transferFromExcluded(address,address,uint256).tTransferAmount (#1008)
Variable ShirokumaCoin._transferBothExcluded(address,address,uint256).rTransferAmount (#837) is too similar to ShirokumaCoin._transferStandard(address,address,uint256).tTransferAmount (#1039)
Variable ShirokumaCoin._transferFromExcluded(address,address,uint256).rTransferAmount (#1008) is too similar to ShirokumaCoin._getValues(uint256).tTransferAmount (#876)
Variable ShirokumaCoin._transferBothExcluded(address,address,uint256).rTransferAmount (#837) is too similar to ShirokumaCoin._transferBothExcluded(address,address,uint256).tTransferAmount (#837)
Variable ShirokumaCoin._transferFromExcluded(address,address,uint256).rTransferAmount (#1008) is too similar to ShirokumaCoin._transferToExcluded(address,address,uint256).tTransferAmount (#996)
Variable ShirokumaCoin._transferToExcluded(address,address,uint256).rTransferAmount (#996) is too similar to ShirokumaCoin._transferBothExcluded(address,address,uint256).tTransferAmount (#837)
Variable ShirokumaCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#918) is too similar to ShirokumaCoin._getValues(uint256).tTransferAmount (#876)
Variable ShirokumaCoin._transferToExcluded(address,address,uint256).rTransferAmount (#996) is too similar to ShirokumaCoin._transferToExcluded(address,address,uint256).tTransferAmount (#996)
Variable ShirokumaCoin._transferStandard(address,address,uint256).rTransferAmount (#1039) is too similar to ShirokumaCoin._getValues(uint256).tTransferAmount (#876)
Variable ShirokumaCoin._transferStandard(address,address,uint256).rTransferAmount (#1039) is too similar to ShirokumaCoin._transferFromExcluded(address,address,uint256).tTransferAmount (#1008)
Variable ShirokumaCoin._getValues(uint256).rTransferAmount (#877) is too similar to ShirokumaCoin._transferBothExcluded(address,address,uint256).tTransferAmount (#837)
Variable ShirokumaCoin._getValues(uint256).rTransferAmount (#877) is too similar to ShirokumaCoin._transferStandard(address,address,uint256).tTransferAmount (#1039)
Variable ShirokumaCoin._transferFromExcluded(address,address,uint256).rTransferAmount (#1008) is too similar to ShirokumaCoin._transferStandard(address,address,uint256).tTransferAmount (#1039)
Variable ShirokumaCoin._transferBothExcluded(address,address,uint256).rTransferAmount (#837) is too similar to ShirokumaCoin._getValues(uint256).tTransferAmount (#876)
Variable ShirokumaCoin.reflectionFromToken(uint256,bool).rTransferAmount (#803) is too similar to ShirokumaCoin._transferFromExcluded(address,address,uint256).tTransferAmount (#1008)
Variable ShirokumaCoin.reflectionFromToken(uint256,bool).rTransferAmount (#803) is too similar to ShirokumaCoin._transferToExcluded(address,address,uint256).tTransferAmount (#996)
Variable ShirokumaCoin._transferStandard(address,address,uint256).rTransferAmount (#1039) is too similar to ShirokumaCoin._transferToExcluded(address,address,uint256).tTransferAmount (#996)
Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#527) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#528)
Variable ShirokumaCoin.reflectionFromToken(uint256,bool).rTransferAmount (#803) is too similar to ShirokumaCoin._transferBothExcluded(address,address,uint256).tTransferAmount (#837)
Variable ShirokumaCoin._transferToExcluded(address,address,uint256).rTransferAmount (#996) is too similar to ShirokumaCoin._transferFromExcluded(address,address,uint256).tTransferAmount (#1008)
Variable ShirokumaCoin.reflectionFromToken(uint256,bool).rTransferAmount (#803) is too similar to ShirokumaCoin._getValues(uint256).tTransferAmount (#876)
Variable ShirokumaCoin._transferFromExcluded(address,address,uint256).rTransferAmount (#1008) is too similar to ShirokumaCoin._transferBothExcluded(address,address,uint256).tTransferAmount (#837)
Variable ShirokumaCoin._transferStandard(address,address,uint256).rTransferAmount (#1039) is too similar to ShirokumaCoin._transferBothExcluded(address,address,uint256).tTransferAmount (#837)
Variable ShirokumaCoin._transferStandard(address,address,uint256).rTransferAmount (#1039) is too similar to ShirokumaCoin._getTValues(uint256).tTransferAmount (#910)
Variable ShirokumaCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#918) is too similar to ShirokumaCoin._transferBothExcluded(address,address,uint256).tTransferAmount (#837)
Variable ShirokumaCoin.reflectionFromToken(uint256,bool).rTransferAmount (#803) is too similar to ShirokumaCoin._transferStandard(address,address,uint256).tTransferAmount (#1039)
Variable ShirokumaCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#918) is too similar to ShirokumaCoin._transferToExcluded(address,address,uint256).tTransferAmount (#996)
Variable ShirokumaCoin._transferStandard(address,address,uint256).rTransferAmount (#1039) is too similar to ShirokumaCoin._transferStandard(address,address,uint256).tTransferAmount (#1039)
Variable ShirokumaCoin._getValues(uint256).rTransferAmount (#877) is too similar to ShirokumaCoin._getValues(uint256).tTransferAmount (#876)
Variable ShirokumaCoin._transferToExcluded(address,address,uint256).rTransferAmount (#996) is too similar to ShirokumaCoin._getTValues(uint256).tTransferAmount (#910)
Variable ShirokumaCoin._transferFromExcluded(address,address,uint256).rTransferAmount (#1008) is too similar to ShirokumaCoin._getTValues(uint256).tTransferAmount (#910)
Variable ShirokumaCoin._transferFromExcluded(address,address,uint256).rTransferAmount (#1008) is too similar to ShirokumaCoin._transferFromExcluded(address,address,uint256).tTransferAmount (#1008)
Variable ShirokumaCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#918) is too similar to ShirokumaCoin._getTValues(uint256).tTransferAmount (#910)
Variable ShirokumaCoin._getValues(uint256).rTransferAmount (#877) is too similar to ShirokumaCoin._transferToExcluded(address,address,uint256).tTransferAmount (#996)
Variable ShirokumaCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#918) is too similar to ShirokumaCoin._transferStandard(address,address,uint256).tTransferAmount (#1039)
Variable ShirokumaCoin.reflectionFromToken(uint256,bool).rTransferAmount (#803) is too similar to ShirokumaCoin._getTValues(uint256).tTransferAmount (#910)
Variable ShirokumaCoin._getValues(uint256).rTransferAmount (#877) is too similar to ShirokumaCoin._getTValues(uint256).tTransferAmount (#910)
Prevent variables from having similar names.

Additional information: link

ShirokumaCoin.slitherConstructorVariables() (#660-1115) uses literals with too many digits:
- _maxTxAmount = 10000000000000 * 10 ** 18 (#694)
ShirokumaCoin.slitherConstructorVariables() (#660-1115) uses literals with too many digits:
- _tTotal = 10000000000000 * 10 ** 18 (#674)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

ShirokumaCoin._tTotal (#674) should be constant
ShirokumaCoin.numTokensSellToAddToLiquidity (#695) should be constant
ShirokumaCoin._name (#678) should be constant
ShirokumaCoin._symbol (#679) should be constant
ShirokumaCoin._decimals (#680) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

allowance(address,address) should be declared external:
- ShirokumaCoin.allowance(address,address) (#755-757)
includeInFee(address) should be declared external:
- ShirokumaCoin.includeInFee(address) (#904-906)
deliver(uint256) should be declared external:
- ShirokumaCoin.deliver(uint256) (#788-795)
totalFees() should be declared external:
- ShirokumaCoin.totalFees() (#784-786)
transfer(address,uint256) should be declared external:
- ShirokumaCoin.transfer(address,uint256) (#750-753)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#424-427)
approve(address,uint256) should be declared external:
- ShirokumaCoin.approve(address,uint256) (#759-762)
totalSupply() should be declared external:
- ShirokumaCoin.totalSupply() (#741-743)
transferFrom(address,address,uint256) should be declared external:
- ShirokumaCoin.transferFrom(address,address,uint256) (#764-768)
decimals() should be declared external:
- ShirokumaCoin.decimals() (#737-739)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#433-437)
excludeFromFee(address) should be declared external:
- ShirokumaCoin.excludeFromFee(address) (#847-849)
setSwapAndLiquifyEnabled(bool) should be declared external:
- ShirokumaCoin.setSwapAndLiquifyEnabled(bool) (#862-865)
isExcludedFromFee(address) should be declared external:
- ShirokumaCoin.isExcludedFromFee(address) (#974-976)
geUnlockTime() should be declared external:
- Ownable.geUnlockTime() (#439-441)
increaseAllowance(address,uint256) should be declared external:
- ShirokumaCoin.increaseAllowance(address,uint256) (#770-773)
name() should be declared external:
- ShirokumaCoin.name() (#729-731)
reflectionFromToken(uint256,bool) should be declared external:
- ShirokumaCoin.reflectionFromToken(uint256,bool) (#797-806)
unlock() should be declared external:
- Ownable.unlock() (#452-457)
excludeFromReward(address) should be declared external:
- ShirokumaCoin.excludeFromReward(address) (#814-822)
symbol() should be declared external:
- ShirokumaCoin.symbol() (#733-735)
lock(uint256) should be declared external:
- Ownable.lock(uint256) (#444-449)
decreaseAllowance(address,uint256) should be declared external:
- ShirokumaCoin.decreaseAllowance(address,uint256) (#775-778)
isExcludedFromReward(address) should be declared external:
- ShirokumaCoin.isExcludedFromReward(address) (#780-782)
Use the external attribute for functions never called from the contract.

Additional information: link

ShirokumaCoin.includeInReward(address) (#824-835) has costly operations inside a loop:
- _excluded.pop() (#831)
Use a local variable to hold the loop computation result.

Additional information: link

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

Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.

Contract has 0% buy tax and 100% sell tax.
Taxes are extremely high (over 30%)

Additional information: link

Token has no transactions for more than 100 days. It seems dead / abandoned.

Attempt to swap token was unsuccessful. For some reason it is untradeable. If token is not in presale stage and is not traded outside PancakeSwap, then it's a scam

Additional information: link

Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.

Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.

Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.

Token is deployed only at one blockchain

Token has only one trading pair

Unable to find website, listings and other project-related information

Token is marked as scam (rug pull, honeypot, phishing, etc.)

Additional information: link

Token has a considerable age, but we're still unable to find its website

Token has a considerable age, but social accounts / website are missing or have few users

Token has a considerable age, but average PancakeSwap 30d trading volume is low

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank