xDragon [DragonSpace Gaming and Rebase] Token

Reentrancy in DragonSpace._transferFrom(address,address,uint256) (#465-508):
External calls:
- swapBack() (#484)
- router.addLiquidity(address(this),busdToken,tokenAmount,busdAmount,0,0,liquidityReceiver,block.timestamp) (#559-568)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#576-582)
- router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#590-596)
External calls sending eth:
- swapBack() (#484)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
State variables written after the call(s):
- _gonBalances[sender] = _gonBalances[sender].sub(gonAmount) (#487)
- _gonBalances[recipient] = _gonBalances[recipient].add(gonAmountReceived) (#491)
- gonAmountReceived = takeFee(sender,recipient,gonAmount) (#490)
- _gonBalances[address(this)] = _gonBalances[address(this)].add(feeAmount) (#637)
- _rebase() (#500)
- _gonsPerFragment = TOTAL_GONS.div(_totalSupply) (#705)
Reentrancy in DragonSpace.swapBack() (#599-627):
External calls:
- _swapAndLiquify(amountToLiquify) (#611)
- router.addLiquidity(address(this),busdToken,tokenAmount,busdAmount,0,0,liquidityReceiver,block.timestamp) (#559-568)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#576-582)
- router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#590-596)
- _swapTokensForBusd(amountToRFV,riskFreeValueReceiver) (#615)
- router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#590-596)
- _swapTokensForBNB(amountToTreasury,treasuryReceiver) (#619)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#576-582)
External calls sending eth:
- _swapAndLiquify(amountToLiquify) (#611)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
State variables written after the call(s):
- _basicTransfer(msg.sender,firePit,amountToFirepit) (#622)
- _gonBalances[from] = _gonBalances[from].sub(gonAmount) (#457)
- _gonBalances[to] = _gonBalances[to].add(gonAmount) (#458)
Apply the check-effects-interactions pattern.

Additional information: link

Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains

Contract ownership is not renounced (belongs to a wallet)

DragonSpace.swapBack() (#599-627) performs a multiplication on the result of a division:
-contractTokenBalance = _gonBalances[address(this)].div(_gonsPerFragment) (#603)
-amountToLiquify = contractTokenBalance.mul(dynamicLiquidityFee.mul(2)).div(realTotalFee) (#605)
DragonSpace.swapBack() (#599-627) performs a multiplication on the result of a division:
-contractTokenBalance = _gonBalances[address(this)].div(_gonsPerFragment) (#603)
-amountToRFV = contractTokenBalance.mul(buyFeeRFV.mul(2).add(sellFeeRFVAdded)).div(realTotalFee) (#606)
DragonSpace.swapBack() (#599-627) performs a multiplication on the result of a division:
-contractTokenBalance = _gonBalances[address(this)].div(_gonsPerFragment) (#603)
-amountToFirepit = contractTokenBalance.mul(firepitFee.mul(2).add(sellFeeFirePitAdded)).div(realTotalFee) (#607)
DragonSpace.setSwapBackSettings(bool,uint256,uint256) (#760-763) performs a multiplication on the result of a division:
-gonSwapThreshold = TOTAL_GONS.div(_denom).mul(_num) (#762)
Consider ordering multiplication before division.

Additional information: link

DragonSpace.constructor() (#353-381) ignores return value by IERC20(busdToken).approve(address(router),uint256(- 1)) (#376)
DragonSpace.constructor() (#353-381) ignores return value by IERC20(busdToken).approve(address(pairBusd),uint256(- 1)) (#377)
DragonSpace.constructor() (#353-381) ignores return value by IERC20(busdToken).approve(address(this),uint256(- 1)) (#378)
DragonSpace.getLiquidityBacking(uint256) (#432-438) ignores return value by liquidityBalance.add(balanceOf(_markerPairs[i]).div(10 ** 9)) (#435)
DragonSpace._addLiquidity(uint256,uint256) (#548-557) ignores return value by router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
DragonSpace._addLiquidityBusd(uint256,uint256) (#558-569) ignores return value by router.addLiquidity(address(this),busdToken,tokenAmount,busdAmount,0,0,liquidityReceiver,block.timestamp) (#559-568)
Ensure that all the return values of the function calls are used.

Additional information: link

DragonSpace.setSwapBackSettings(bool,uint256,uint256) (#760-763) should emit an event for:
- gonSwapThreshold = TOTAL_GONS.div(_denom).mul(_num) (#762)
DragonSpace.setFees(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256) (#772-798) should emit an event for:
- liquidityFee = _liquidityFee (#785)
- buyFeeRFV = _riskFreeValue (#786)
- treasuryFee = _treasuryFee (#787)
- firepitFee = _firepit (#788)
- sellFeeTreasuryAdded = _sellFeeTreasuryAdded (#789)
- sellFeeRFVAdded = _sellFeeRFVAdded (#790)
- sellFeeLiquidityAdded = _sellFeeLiquidityAdded (#791)
- sellFeeFirePitAdded = _sellFeeFirepitAdded (#792)
- totalBuyFee = liquidityFee.add(treasuryFee).add(buyFeeRFV).add(firepitFee) (#793)
- totalSellFee = totalBuyFee.add(sellFeeTreasuryAdded).add(sellFeeRFVAdded).add(sellFeeFirePitAdded).add(sellFeeLiquidityAdded) (#794-795)
- feeDenominator = _feeDenominator (#796)
DragonSpace.setRebaseFrequency(uint256) (#814-817) should emit an event for:
- rebaseFrequency = _rebaseFrequency (#816)
DragonSpace.setRewardYield(uint256,uint256) (#819-822) should emit an event for:
- rewardYield = _rewardYield (#820)
- rewardYieldDenominator = _rewardYieldDenominator (#821)
DragonSpace.setNextRebase(uint256) (#834-836) should emit an event for:
- nextRebase = _nextRebase (#835)
Emit an event for critical parameter changes.

Additional information: link

DragonSpace.setFeeReceivers(address,address,address,address)._liquidityReceiver (#765) lacks a zero-check on :
- liquidityReceiver = _liquidityReceiver (#766)
DragonSpace.setFeeReceivers(address,address,address,address)._treasuryReceiver (#765) lacks a zero-check on :
- treasuryReceiver = _treasuryReceiver (#767)
DragonSpace.setFeeReceivers(address,address,address,address)._riskFreeValueReceiver (#765) lacks a zero-check on :
- riskFreeValueReceiver = _riskFreeValueReceiver (#768)
DragonSpace.setFeeReceivers(address,address,address,address)._firepit (#765) lacks a zero-check on :
- firePit = _firepit (#769)
DragonSpace.clearStuckBalance(address)._receiver (#800) lacks a zero-check on :
- address(_receiver).transfer(balance) (#802)
Check that the address is not zero.

Additional information: link

DragonSpace.manualSync() (#444-448) has external calls inside a loop: InterfaceLP(_markerPairs[i]).sync() (#446)
Favor pull over push strategy for external calls.

Additional information: link

Reentrancy in DragonSpace._transferFrom(address,address,uint256) (#465-508):
External calls:
- swapBack() (#484)
- router.addLiquidity(address(this),busdToken,tokenAmount,busdAmount,0,0,liquidityReceiver,block.timestamp) (#559-568)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#576-582)
- router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#590-596)
External calls sending eth:
- swapBack() (#484)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
State variables written after the call(s):
- _rebase() (#500)
- _totalSupply = _totalSupply.sub(uint256(- supplyDelta)) (#696)
- _totalSupply = _totalSupply.add(uint256(supplyDelta)) (#698)
- _totalSupply = MAX_SUPPLY (#702)
- _rebase() (#500)
- nextRebase = epoch + rebaseFrequency (#707)
Reentrancy in DragonSpace.constructor() (#353-381):
External calls:
- pair = IDEXFactory(router.factory()).createPair(address(this),router.WETH()) (#356)
- pairBusd = IDEXFactory(router.factory()).createPair(address(this),busdToken) (#357)
State variables written after the call(s):
- _allowedFragments[address(this)][address(router)] = uint256(- 1) (#359)
- _allowedFragments[address(this)][pair] = uint256(- 1) (#360)
- _allowedFragments[address(this)][address(this)] = uint256(- 1) (#361)
- _allowedFragments[address(this)][pairBusd] = uint256(- 1) (#362)
- _gonBalances[msg.sender] = TOTAL_GONS (#368)
- _gonsPerFragment = TOTAL_GONS.div(_totalSupply) (#369)
- _isFeeExempt[treasuryReceiver] = true (#371)
- _isFeeExempt[riskFreeValueReceiver] = true (#372)
- _isFeeExempt[address(this)] = true (#373)
- _isFeeExempt[msg.sender] = true (#374)
- setAutomatedMarketMakerPair(pair,true) (#364)
- _markerPairs.push(_pair) (#730)
- _markerPairs[i] = _markerPairs[_markerPairs.length - 1] (#735)
- _markerPairs.pop() (#736)
- setAutomatedMarketMakerPair(pairBusd,true) (#365)
- _markerPairs.push(_pair) (#730)
- _markerPairs[i] = _markerPairs[_markerPairs.length - 1] (#735)
- _markerPairs.pop() (#736)
- _totalSupply = INITIAL_FRAGMENTS_SUPPLY (#367)
- setAutomatedMarketMakerPair(pair,true) (#364)
- automatedMarketMakerPairs[_pair] = _value (#727)
- setAutomatedMarketMakerPair(pairBusd,true) (#365)
- automatedMarketMakerPairs[_pair] = _value (#727)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in DragonSpace._swapAndLiquify(uint256) (#521-546):
External calls:
- _swapTokensForBNB(half,address(this)) (#528)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#576-582)
- _addLiquidity(otherHalf,newBalance) (#532)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
External calls sending eth:
- _addLiquidity(otherHalf,newBalance) (#532)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
Event emitted after the call(s):
- SwapAndLiquify(half,newBalance,otherHalf) (#534)
Reentrancy in DragonSpace._swapAndLiquify(uint256) (#521-546):
External calls:
- _swapTokensForBusd(half,address(this)) (#538)
- router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#590-596)
- _addLiquidityBusd(otherHalf,newBalance_scope_1) (#542)
- router.addLiquidity(address(this),busdToken,tokenAmount,busdAmount,0,0,liquidityReceiver,block.timestamp) (#559-568)
Event emitted after the call(s):
- SwapAndLiquifyBusd(half,newBalance_scope_1,otherHalf) (#544)
Reentrancy in DragonSpace._transferFrom(address,address,uint256) (#465-508):
External calls:
- swapBack() (#484)
- router.addLiquidity(address(this),busdToken,tokenAmount,busdAmount,0,0,liquidityReceiver,block.timestamp) (#559-568)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#576-582)
- router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#590-596)
External calls sending eth:
- swapBack() (#484)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
Event emitted after the call(s):
- LogRebase(epoch,_totalSupply) (#691)
- _rebase() (#500)
- LogRebase(epoch,_totalSupply) (#709)
- _rebase() (#500)
- Transfer(sender,address(this),feeAmount.div(_gonsPerFragment)) (#638)
- gonAmountReceived = takeFee(sender,recipient,gonAmount) (#490)
- Transfer(sender,recipient,gonAmountReceived.div(_gonsPerFragment)) (#493-497)
Reentrancy in DragonSpace.constructor() (#353-381):
External calls:
- pair = IDEXFactory(router.factory()).createPair(address(this),router.WETH()) (#356)
- pairBusd = IDEXFactory(router.factory()).createPair(address(this),busdToken) (#357)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(_pair,_value) (#742)
- setAutomatedMarketMakerPair(pair,true) (#364)
- SetAutomatedMarketMakerPair(_pair,_value) (#742)
- setAutomatedMarketMakerPair(pairBusd,true) (#365)
Reentrancy in DragonSpace.constructor() (#353-381):
External calls:
- pair = IDEXFactory(router.factory()).createPair(address(this),router.WETH()) (#356)
- pairBusd = IDEXFactory(router.factory()).createPair(address(this),busdToken) (#357)
- IERC20(busdToken).approve(address(router),uint256(- 1)) (#376)
- IERC20(busdToken).approve(address(pairBusd),uint256(- 1)) (#377)
- IERC20(busdToken).approve(address(this),uint256(- 1)) (#378)
Event emitted after the call(s):
- Transfer(address(0x0),msg.sender,_totalSupply) (#380)
Reentrancy in DragonSpace.swapBack() (#599-627):
External calls:
- _swapAndLiquify(amountToLiquify) (#611)
- router.addLiquidity(address(this),busdToken,tokenAmount,busdAmount,0,0,liquidityReceiver,block.timestamp) (#559-568)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#576-582)
- router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#590-596)
- _swapTokensForBusd(amountToRFV,riskFreeValueReceiver) (#615)
- router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#590-596)
- _swapTokensForBNB(amountToTreasury,treasuryReceiver) (#619)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,receiver,block.timestamp) (#576-582)
External calls sending eth:
- _swapAndLiquify(amountToLiquify) (#611)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,liquidityReceiver,block.timestamp) (#549-556)
Event emitted after the call(s):
- SwapBack(contractTokenBalance,amountToLiquify,amountToRFV,amountToTreasury,amountToFirepit) (#626)
- Transfer(from,to,amount) (#460)
- _basicTransfer(msg.sender,firePit,amountToFirepit) (#622)
Apply the check-effects-interactions pattern.

Additional information: link

DragonSpace.shouldRebase() (#405-407) uses timestamp for comparisons
Dangerous comparisons:
- nextRebase <= block.timestamp (#406)
DragonSpace._transferFrom(address,address,uint256) (#465-508) uses timestamp for comparisons
Dangerous comparisons:
- shouldRebase() && autoRebase (#499)
DragonSpace.manualRebase() (#713-722) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(nextRebase <= block.timestamp,Not in time) (#715)
Avoid relying on block.timestamp.

Additional information: link

DragonSpace.setAutomatedMarketMakerPair(address,bool) (#724-743) has costly operations inside a loop:
- _markerPairs.pop() (#736)
Use a local variable to hold the loop computation result.

Additional information: link

Roles.add(Roles.Role,address) (#124-127) is never used and should be removed
Roles.has(Roles.Role,address) (#134-137) is never used and should be removed
Roles.remove(Roles.Role,address) (#129-132) is never used and should be removed
SafeMath.mod(uint256,uint256) (#109-112) is never used and should be removed
SafeMathInt.abs(int256) (#35-38) is never used and should be removed
SafeMathInt.add(int256,int256) (#29-33) is never used and should be removed
SafeMathInt.div(int256,int256) (#17-21) is never used and should be removed
SafeMathInt.mul(int256,int256) (#9-15) is never used and should be removed
SafeMathInt.sub(int256,int256) (#23-27) is never used and should be removed
Remove unused functions.

Additional information: link

DragonSpace.totalBuyFee (#325) is set pre-construction with a non-constant function or state variable:
- liquidityFee.add(treasuryFee).add(buyFeeRFV).add(firepitFee)
DragonSpace.totalSellFee (#326-327) is set pre-construction with a non-constant function or state variable:
- totalBuyFee.add(sellFeeTreasuryAdded).add(sellFeeRFVAdded).add(sellFeeFirePitAdded).add(sellFeeLiquidityAdded)
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

Pragma version^0.7.4 (#3) allows old versions
solc-0.7.4 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

Function IDEXRouter.WETH() (#171) is not in mixedCase
Parameter DragonSpace.checkFeeExempt(address)._addr (#397) is not in mixedCase
Parameter DragonSpace.setAutomatedMarketMakerPair(address,bool)._pair (#724) is not in mixedCase
Parameter DragonSpace.setAutomatedMarketMakerPair(address,bool)._value (#724) is not in mixedCase
Parameter DragonSpace.setInitialDistributionFinished(bool)._value (#745) is not in mixedCase
Parameter DragonSpace.setFeeExempt(address,bool)._addr (#750) is not in mixedCase
Parameter DragonSpace.setFeeExempt(address,bool)._value (#750) is not in mixedCase
Parameter DragonSpace.setSwapBackSettings(bool,uint256,uint256)._enabled (#760) is not in mixedCase
Parameter DragonSpace.setSwapBackSettings(bool,uint256,uint256)._num (#760) is not in mixedCase
Parameter DragonSpace.setSwapBackSettings(bool,uint256,uint256)._denom (#760) is not in mixedCase
Parameter DragonSpace.setFeeReceivers(address,address,address,address)._liquidityReceiver (#765) is not in mixedCase
Parameter DragonSpace.setFeeReceivers(address,address,address,address)._treasuryReceiver (#765) is not in mixedCase
Parameter DragonSpace.setFeeReceivers(address,address,address,address)._riskFreeValueReceiver (#765) is not in mixedCase
Parameter DragonSpace.setFeeReceivers(address,address,address,address)._firepit (#765) is not in mixedCase
Parameter DragonSpace.setFees(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256)._liquidityFee (#772) is not in mixedCase
Parameter DragonSpace.setFees(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256)._riskFreeValue (#772) is not in mixedCase
Parameter DragonSpace.setFees(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256)._treasuryFee (#772) is not in mixedCase
Parameter DragonSpace.setFees(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256)._firepit (#772) is not in mixedCase
Parameter DragonSpace.setFees(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256)._sellFeeTreasuryAdded (#772) is not in mixedCase
Parameter DragonSpace.setFees(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256)._sellFeeFirepitAdded (#772) is not in mixedCase
Parameter DragonSpace.setFees(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256)._sellFeeLiquidityAdded (#772) is not in mixedCase
Parameter DragonSpace.setFees(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256)._sellFeeRFVAdded (#772) is not in mixedCase
Parameter DragonSpace.setFees(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256)._feeDenominator (#772) is not in mixedCase
Parameter DragonSpace.clearStuckBalance(address)._receiver (#800) is not in mixedCase
Parameter DragonSpace.setAutoRebase(bool)._autoRebase (#809) is not in mixedCase
Parameter DragonSpace.setRebaseFrequency(uint256)._rebaseFrequency (#814) is not in mixedCase
Parameter DragonSpace.setRewardYield(uint256,uint256)._rewardYield (#819) is not in mixedCase
Parameter DragonSpace.setRewardYield(uint256,uint256)._rewardYieldDenominator (#819) is not in mixedCase
Parameter DragonSpace.setFeesOnNormalTransfers(bool)._enabled (#824) is not in mixedCase
Parameter DragonSpace.setIsLiquidityInBnb(bool)._value (#829) is not in mixedCase
Parameter DragonSpace.setNextRebase(uint256)._nextRebase (#834) is not in mixedCase
Parameter DragonSpace.setMaxSellTransaction(uint256)._maxTxn (#838) is not in mixedCase
Variable DragonSpace._isFeeExempt (#292) is not in mixedCase
Variable DragonSpace._markerPairs (#293) is not in mixedCase
Variable DragonSpace.DEAD (#304) is not in mixedCase
Variable DragonSpace.ZERO (#305) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#176) is too similar to IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#177)
Prevent variables from having similar names.

Additional information: link

DragonSpace.slitherConstructorVariables() (#275-848) uses literals with too many digits:
- rewardYieldDenominator = 10000000000 (#286)
DragonSpace.slitherConstructorVariables() (#275-848) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#304)
DragonSpace.slitherConstructorVariables() (#275-848) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (#305)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

SafeMathInt.MAX_INT256 (#7) is never used in SafeMathInt (#5-39)
Remove unused state variables.

Additional information: link

DragonSpace.DEAD (#304) should be constant
DragonSpace.ZERO (#305) should be constant
DragonSpace.busdToken (#311) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

name() should be declared external:
- ERC20Detailed.name() (#155-157)
symbol() should be declared external:
- ERC20Detailed.symbol() (#159-161)
decimals() should be declared external:
- ERC20Detailed.decimals() (#163-165)
owner() should be declared external:
- Ownable.owner() (#250-252)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#259-262)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#264-266)
Use the external attribute for functions never called from the contract.

Additional information: link

Not a direct threat, but may indicate unreliable intentions of developer. Widespread names (e.g. Elon, King, Moon, Doge) are common among meme-tokens and scams. The allow to gain free hype and attract unexperienced investors.

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.

BscScan page for the token does not contain additional info: website, socials, description, etc.

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Unable to verify that token and website are owned by the same team (no listings + unable to find contract on website)

Unable to verify token contract address on the website

Unable to find whitepaper 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

Young tokens have high risks of price dump / death