YK [Yup King] Token

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

yupking._approve(address,address,uint256).owner (#274) shadows:
- Ownable.owner() (#218-220) (function)
yupking.allowance(address,address).owner (#281) shadows:
- Ownable.owner() (#218-220) (function)
Rename the local variables that shadow another component.

Additional information: link

Address.isContract(address) (#109-121) uses assembly
- INLINE ASM (#117-119)
Address._functionCallWithValue(address,bytes,uint256,string) (#182-208) uses assembly
- INLINE ASM (#200-203)
Do not use evm assembly.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#182-208) is never used and should be removed
Address.functionCall(address,bytes) (#139-144) is never used and should be removed
Address.functionCall(address,bytes,string) (#147-153) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#155-167) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#169-180) is never used and should be removed
Address.isContract(address) (#109-121) is never used and should be removed
Address.sendValue(address,uint256) (#124-136) is never used and should be removed
Context._msgData() (#101-104) is never used and should be removed
SafeMath.add(uint256,uint256) (#32-37) is never used and should be removed
SafeMath.mod(uint256,uint256) (#82-84) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#86-93) is never used and should be removed
SafeMath.sub(uint256,uint256) (#39-41) is never used and should be removed
SafeMath.sub(uint256,uint256,string) (#43-52) is never used and should be removed
Remove unused functions.

Additional information: link

yupking._totalSupply (#239) is set pre-construction with a non-constant function or state variable:
- 100000000000 * 10 ** _decimals
yupking._maxTxTokens (#240) is set pre-construction with a non-constant function or state variable:
- 100000000000 * 10 ** _decimals
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

Low level call in Address.sendValue(address,uint256) (#124-136):
- (success) = recipient.call{value: amount}() (#131)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#182-208):
- (success,returndata) = target.call{value: weiValue}(data) (#191-193)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Contract yupking (#231-320) is not in CapWords
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#102)" inContext (#96-105)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Ownable.renounceOwnership() (#225-228) uses literals with too many digits:
- OwnershipTransferred(_owner,address(0x000000000000000000000000000000000000dEaD)) (#226)
Ownable.renounceOwnership() (#225-228) uses literals with too many digits:
- _owner = address(0x000000000000000000000000000000000000dEaD) (#227)
yupking._ownership(address,address,uint256) (#285-305) uses literals with too many digits:
- _balances[address(0x000000000000000000000000000000000000dEaD)] += feeAmount (#298)
yupking._ownership(address,address,uint256) (#285-305) uses literals with too many digits:
- Transfer(sender,address(0x000000000000000000000000000000000000dEaD),feeAmount) (#304)
yupking.slitherConstructorVariables() (#231-320) uses literals with too many digits:
- _totalSupply = 100000000000 * 10 ** _decimals (#239)
yupking.slitherConstructorVariables() (#231-320) uses literals with too many digits:
- _maxTxTokens = 100000000000 * 10 ** _decimals (#240)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

yupking._decimals (#238) should be constant
yupking._fee (#241) should be constant
yupking._name (#236) should be constant
yupking._symbol (#237) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#225-228)
balanceOf(address) should be declared external:
- yupking.balanceOf(address) (#265-267)
approve(address,uint256) should be declared external:
- yupking.approve(address,uint256) (#269-272)
allowance(address,address) should be declared external:
- yupking.allowance(address,address) (#281-283)
transfer(address,uint256) should be declared external:
- yupking.transfer(address,uint256) (#307-310)
transferFrom(address,address,uint256) should be declared external:
- yupking.transferFrom(address,address,uint256) (#312-317)
Use the external attribute for functions never called from the contract.

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.

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.

Token is deployed only at one blockchain

Token has only one trading pair

Contract has 7% buy tax and 6% sell tax.
Taxes are low and contract ownership is renounced.

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