COSTAX Token

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

COSTAX.includeAccount(address) (#1064-1086) has costly operations inside a loop:
- _excluded.pop() (#1078)
Use a local variable to hold the loop computation result.

Additional information: link

COSTAX._getTValues(uint256) (#1238-1246) performs a multiplication on the result of a division:
-tFee = tAmount.div(100).mul(reflectFees) (#1240)
Consider ordering multiplication before division.

Additional information: link

COSTAX.allowance(address,address).owner (#928) shadows:
- Ownable.owner() (#754-758) (function)
COSTAX._approve(address,address,uint256).owner (#1090) shadows:
- Ownable.owner() (#754-758) (function)
Rename the local variables that shadow another component.

Additional information: link

Address.isContract(address) (#486-504) uses assembly
- INLINE ASM (#500)
Address._functionCallWithValue(address,bytes,uint256,string) (#672-714) uses assembly
- INLINE ASM (#698-704)
Do not use evm assembly.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#672-714) is never used and should be removed
Address.functionCall(address,bytes) (#592-596) is never used and should be removed
Address.functionCall(address,bytes,string) (#612-616) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#642-646) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#662-668) is never used and should be removed
Address.isContract(address) (#486-504) is never used and should be removed
Address.sendValue(address,uint256) (#540-552) is never used and should be removed
Context._msgData() (#14-17) is never used and should be removed
SafeMath.mod(uint256,uint256) (#406-410) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#438-444) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version^0.6.7 (#1) allows old versions
solc-0.6.7 is not recommended for deployment
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.

Additional information: link

Low level call in Address.sendValue(address,uint256) (#540-552):
- (success) = recipient.call{value: amount}() (#548)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#672-714):
- (success,returndata) = target.call{value: weiValue}(data) (#680)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Constant COSTAX._tTotal (#848) is not in UPPER_CASE_WITH_UNDERSCORES
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#16)" inContext (#5-19)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable COSTAX._transferFromExcluded(address,address,uint256).rTransferAmount (#1178) is too similar to COSTAX._transferBothExcluded(address,address,uint256).tTransferAmount (#1196)
Variable COSTAX._transferToExcluded(address,address,uint256).rTransferAmount (#1160) is too similar to COSTAX._transferBothExcluded(address,address,uint256).tTransferAmount (#1196)
Variable COSTAX._getRValues(uint256,uint256,uint256).rTransferAmount (#1256) is too similar to COSTAX._getValues(uint256).tTransferAmount (#1226)
Variable COSTAX.reflectionFromToken(uint256,bool).rTransferAmount (#1024) is too similar to COSTAX._transferToExcluded(address,address,uint256).tTransferAmount (#1160)
Variable COSTAX.reflectionFromToken(uint256,bool).rTransferAmount (#1024) is too similar to COSTAX._getValues(uint256).tTransferAmount (#1226)
Variable COSTAX._transferFromExcluded(address,address,uint256).rTransferAmount (#1178) is too similar to COSTAX._transferToExcluded(address,address,uint256).tTransferAmount (#1160)
Variable COSTAX._transferFromExcluded(address,address,uint256).rTransferAmount (#1178) is too similar to COSTAX._getValues(uint256).tTransferAmount (#1226)
Variable COSTAX._transferToExcluded(address,address,uint256).rTransferAmount (#1160) is too similar to COSTAX._transferToExcluded(address,address,uint256).tTransferAmount (#1160)
Variable COSTAX._transferToExcluded(address,address,uint256).rTransferAmount (#1160) is too similar to COSTAX._getValues(uint256).tTransferAmount (#1226)
Variable COSTAX._transferBothExcluded(address,address,uint256).rTransferAmount (#1196) is too similar to COSTAX._transferBothExcluded(address,address,uint256).tTransferAmount (#1196)
Variable COSTAX.reflectionFromToken(uint256,bool).rTransferAmount (#1024) is too similar to COSTAX._getTValues(uint256).tTransferAmount (#1242)
Variable COSTAX._transferFromExcluded(address,address,uint256).rTransferAmount (#1178) is too similar to COSTAX._getTValues(uint256).tTransferAmount (#1242)
Variable COSTAX.reflectionFromToken(uint256,bool).rTransferAmount (#1024) is too similar to COSTAX._transferFromExcluded(address,address,uint256).tTransferAmount (#1178)
Variable COSTAX._transferFromExcluded(address,address,uint256).rTransferAmount (#1178) is too similar to COSTAX._transferFromExcluded(address,address,uint256).tTransferAmount (#1178)
Variable COSTAX._getValues(uint256).rTransferAmount (#1230) is too similar to COSTAX._transferBothExcluded(address,address,uint256).tTransferAmount (#1196)
Variable COSTAX._getRValues(uint256,uint256,uint256).rTransferAmount (#1256) is too similar to COSTAX._transferBothExcluded(address,address,uint256).tTransferAmount (#1196)
Variable COSTAX.reflectionFromToken(uint256,bool).rTransferAmount (#1024) is too similar to COSTAX._transferBothExcluded(address,address,uint256).tTransferAmount (#1196)
Variable COSTAX._getValues(uint256).rTransferAmount (#1230) is too similar to COSTAX._transferFromExcluded(address,address,uint256).tTransferAmount (#1178)
Variable COSTAX._transferBothExcluded(address,address,uint256).rTransferAmount (#1196) is too similar to COSTAX._getTValues(uint256).tTransferAmount (#1242)
Variable COSTAX._getValues(uint256).rTransferAmount (#1230) is too similar to COSTAX._transferToExcluded(address,address,uint256).tTransferAmount (#1160)
Variable COSTAX._transferFromExcluded(address,address,uint256).rTransferAmount (#1178) is too similar to COSTAX._transferStandard(address,address,uint256).tTransferAmount (#1144)
Variable COSTAX._transferToExcluded(address,address,uint256).rTransferAmount (#1160) is too similar to COSTAX._getTValues(uint256).tTransferAmount (#1242)
Variable COSTAX._getRValues(uint256,uint256,uint256).rTransferAmount (#1256) is too similar to COSTAX._transferStandard(address,address,uint256).tTransferAmount (#1144)
Variable COSTAX._transferStandard(address,address,uint256).rTransferAmount (#1144) is too similar to COSTAX._transferFromExcluded(address,address,uint256).tTransferAmount (#1178)
Variable COSTAX._transferStandard(address,address,uint256).rTransferAmount (#1144) is too similar to COSTAX._transferToExcluded(address,address,uint256).tTransferAmount (#1160)
Variable COSTAX._transferBothExcluded(address,address,uint256).rTransferAmount (#1196) is too similar to COSTAX._transferFromExcluded(address,address,uint256).tTransferAmount (#1178)
Variable COSTAX._transferBothExcluded(address,address,uint256).rTransferAmount (#1196) is too similar to COSTAX._transferToExcluded(address,address,uint256).tTransferAmount (#1160)
Variable COSTAX._transferStandard(address,address,uint256).rTransferAmount (#1144) is too similar to COSTAX._transferBothExcluded(address,address,uint256).tTransferAmount (#1196)
Variable COSTAX._getValues(uint256).rTransferAmount (#1230) is too similar to COSTAX._transferStandard(address,address,uint256).tTransferAmount (#1144)
Variable COSTAX._transferToExcluded(address,address,uint256).rTransferAmount (#1160) is too similar to COSTAX._transferFromExcluded(address,address,uint256).tTransferAmount (#1178)
Variable COSTAX._getRValues(uint256,uint256,uint256).rTransferAmount (#1256) is too similar to COSTAX._getTValues(uint256).tTransferAmount (#1242)
Variable COSTAX._transferStandard(address,address,uint256).rTransferAmount (#1144) is too similar to COSTAX._transferStandard(address,address,uint256).tTransferAmount (#1144)
Variable COSTAX._transferBothExcluded(address,address,uint256).rTransferAmount (#1196) is too similar to COSTAX._transferStandard(address,address,uint256).tTransferAmount (#1144)
Variable COSTAX._getValues(uint256).rTransferAmount (#1230) is too similar to COSTAX._getValues(uint256).tTransferAmount (#1226)
Variable COSTAX._getValues(uint256).rTransferAmount (#1230) is too similar to COSTAX._getTValues(uint256).tTransferAmount (#1242)
Variable COSTAX.reflectionFromToken(uint256,bool).rTransferAmount (#1024) is too similar to COSTAX._transferStandard(address,address,uint256).tTransferAmount (#1144)
Variable COSTAX._transferToExcluded(address,address,uint256).rTransferAmount (#1160) is too similar to COSTAX._transferStandard(address,address,uint256).tTransferAmount (#1144)
Variable COSTAX._getRValues(uint256,uint256,uint256).rTransferAmount (#1256) is too similar to COSTAX._transferFromExcluded(address,address,uint256).tTransferAmount (#1178)
Variable COSTAX._getRValues(uint256,uint256,uint256).rTransferAmount (#1256) is too similar to COSTAX._transferToExcluded(address,address,uint256).tTransferAmount (#1160)
Variable COSTAX._transferStandard(address,address,uint256).rTransferAmount (#1144) is too similar to COSTAX._getTValues(uint256).tTransferAmount (#1242)
Variable COSTAX._transferStandard(address,address,uint256).rTransferAmount (#1144) is too similar to COSTAX._getValues(uint256).tTransferAmount (#1226)
Variable COSTAX._transferBothExcluded(address,address,uint256).rTransferAmount (#1196) is too similar to COSTAX._getValues(uint256).tTransferAmount (#1226)
Prevent variables from having similar names.

Additional information: link

COSTAX._decimals (#860) should be constant
COSTAX._name (#856) should be constant
COSTAX._symbol (#858) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

owner() should be declared external:
- Ownable.owner() (#754-758)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#792-798)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#810-818)
name() should be declared external:
- COSTAX.name() (#876-880)
symbol() should be declared external:
- COSTAX.symbol() (#884-888)
decimals() should be declared external:
- COSTAX.decimals() (#892-896)
totalSupply() should be declared external:
- COSTAX.totalSupply() (#900-904)
balanceOf(address) should be declared external:
- COSTAX.balanceOf(address) (#908-914)
transfer(address,uint256) should be declared external:
- COSTAX.transfer(address,uint256) (#918-924)
allowance(address,address) should be declared external:
- COSTAX.allowance(address,address) (#928-932)
approve(address,uint256) should be declared external:
- COSTAX.approve(address,uint256) (#936-942)
transferFrom(address,address,uint256) should be declared external:
- COSTAX.transferFrom(address,address,uint256) (#946-954)
increaseAllowance(address,uint256) should be declared external:
- COSTAX.increaseAllowance(address,uint256) (#958-964)
decreaseAllowance(address,uint256) should be declared external:
- COSTAX.decreaseAllowance(address,uint256) (#968-974)
isExcluded(address) should be declared external:
- COSTAX.isExcluded(address) (#978-982)
totalFees() should be declared external:
- COSTAX.totalFees() (#986-990)
reflect(uint256) should be declared external:
- COSTAX.reflect(uint256) (#994-1008)
reflectionFromToken(uint256,bool) should be declared external:
- COSTAX.reflectionFromToken(uint256,bool) (#1012-1030)
Use the external attribute for functions never called from the contract.

Additional information: link

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 website, listings and other project-related information

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

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank