Global Guide is the first platform that implements socialize-to-earn concept in crypto! Our app is combined with NFT, SocialFi and GameFi elements, where users can earn rewards by 📸 sharing photos,📝 reviews and📍locations. Core features: 🔥 Photo-To-Earn 🔥 Review-To-Earn 🔥 Checkin-To-Earn 🔥 Staking platform 🔥 Annual Meet-up Events. We are a next-generation team dedicated to creating new solutions that improve the way people’s travel ✅ SAFU: Audit + KYC ✅ Beta App
Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains
Contract ownership is not renounced (belongs to a wallet)
Parameter GlobalGuideToken.changeTaxFee(uint256)._taxFee (contracts/GlobalGuideToken.sol#201) is not in mixedCase
Parameter GlobalGuideToken.changeFeeReceiver(address)._feeReceiver (contracts/GlobalGuideToken.sol#214) is not in mixedCase
Parameter GlobalGuideToken.changeTakeFee(bool)._takeFee (contracts/GlobalGuideToken.sol#208) is not in mixedCase
Parameter GlobalGuideToken.addAdmin(address)._AddAdmin (contracts/GlobalGuideToken.sol#192) is not in mixedCase
Function IPancakePair.MINIMUM_LIQUIDITY() (contracts/GlobalGuideToken.sol#76) is not in mixedCase
Function IERC20Permit.DOMAIN_SEPARATOR() (@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol#59) is not in mixedCase
Variable ERC20._balances (@openzeppelin/contracts/token/ERC20/ERC20.sol#36) is not in mixedCase
Function IPancakePair.PERMIT_TYPEHASH() (contracts/GlobalGuideToken.sol#45) is not in mixedCase
Function IPancakePair.DOMAIN_SEPARATOR() (contracts/GlobalGuideToken.sol#43) is not in mixedCase
Parameter GlobalGuideToken.removeAdmin(address)._RemoveAdmin (contracts/GlobalGuideToken.sol#186) is not in mixedCase
Parameter GlobalGuideToken.callDetectTransferRestriction(address)._addr (contracts/GlobalGuideToken.sol#161) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
GlobalGuideToken.callDetectTransferRestriction(address) (contracts/GlobalGuideToken.sol#161-184) uses literals with too many digits:
- bitMask = 0x0000000000000000000000001111111111111111111111111111111111111111 (contracts/GlobalGuideToken.sol#167)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
Low level call in Address.functionDelegateCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#184-193):
- (success,returndata) = target.delegatecall(data) (@openzeppelin/contracts/utils/Address.sol#191)
Low level call in Address.sendValue(address,uint256) (@openzeppelin/contracts/utils/Address.sol#60-65):
- (success) = recipient.call{value: amount}() (@openzeppelin/contracts/utils/Address.sol#63)
Low level call in Address.functionCallWithValue(address,bytes,uint256,string) (@openzeppelin/contracts/utils/Address.sol#128-139):
- (success,returndata) = target.call{value: value}(data) (@openzeppelin/contracts/utils/Address.sol#137)
Low level call in Address.functionStaticCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#157-166):
- (success,returndata) = target.staticcall(data) (@openzeppelin/contracts/utils/Address.sol#164)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Different versions of Solidity are used:
- Version used: ['^0.8.0', '^0.8.1']
- ^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol#4)
- ^0.8.1 (@openzeppelin/contracts/utils/Address.sol#4)
- ^0.8.0 (@openzeppelin/contracts/utils/Context.sol#4)
- ^0.8.0 (contracts/GlobalGuideToken.sol#3)
Use one Solidity version.
Additional information: link
Address.verifyCallResult(bool,bytes,string) (@openzeppelin/contracts/utils/Address.sol#201-221) is never used and should be removed
Address.sendValue(address,uint256) (@openzeppelin/contracts/utils/Address.sol#60-65) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (@openzeppelin/contracts/utils/Address.sol#114-120) is never used and should be removed
SafeERC20._callOptionalReturn(IERC20,bytes) (@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol#105-115) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#184-193) is never used and should be removed
SafeERC20.safeTransfer(IERC20,address,uint256) (@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol#22-28) is never used and should be removed
Address.functionDelegateCall(address,bytes) (@openzeppelin/contracts/utils/Address.sol#174-176) is never used and should be removed
SafeERC20.safeIncreaseAllowance(IERC20,address,uint256) (@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol#61-68) is never used and should be removed
SafeERC20.safePermit(IERC20Permit,address,address,uint256,uint256,uint8,bytes32,bytes32) (@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol#83-97) is never used and should be removed
SafeERC20.safeApprove(IERC20,address,uint256) (@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol#46-59) is never used and should be removed
ERC20._burn(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#281-296) is never used and should be removed
SafeERC20.safeTransferFrom(IERC20,address,address,uint256) (@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol#30-37) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (@openzeppelin/contracts/utils/Address.sol#128-139) is never used and should be removed
Context._msgData() (@openzeppelin/contracts/utils/Context.sol#21-23) is never used and should be removed
Address.functionStaticCall(address,bytes) (@openzeppelin/contracts/utils/Address.sol#147-149) is never used and should be removed
ERC20._transfer(address,address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#226-246) is never used and should be removed
SafeERC20.safeDecreaseAllowance(IERC20,address,uint256) (@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol#70-81) is never used and should be removed
Address.isContract(address) (@openzeppelin/contracts/utils/Address.sol#36-42) is never used and should be removed
Address.functionCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#95-101) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#157-166) is never used and should be removed
Address.functionCall(address,bytes) (@openzeppelin/contracts/utils/Address.sol#85-87) is never used and should be removed
Remove unused functions.
Additional information: link
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#4) allows old versions
solc-0.8.1 is not recommended for deployment
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#4) allows old versions
Pragma version^0.8.1 (@openzeppelin/contracts/utils/Address.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#4) allows old versions
Pragma version^0.8.0 (contracts/GlobalGuideToken.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Context.sol#4) 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.
Additional information: link
GlobalGuideToken._transfer(address,address,uint256).taxFeeAmount (contracts/GlobalGuideToken.sol#236) is a local variable never initialized
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.
Additional information: link
GlobalGuideToken.constructor(string,string,uint256,address).symbol (contracts/GlobalGuideToken.sol#140) shadows:
- ERC20.symbol() (@openzeppelin/contracts/token/ERC20/ERC20.sol#70-72) (function)
- IERC20Metadata.symbol() (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#22) (function)
GlobalGuideToken.constructor(string,string,uint256,address).name (contracts/GlobalGuideToken.sol#139) shadows:
- ERC20.name() (@openzeppelin/contracts/token/ERC20/ERC20.sol#62-64) (function)
- IERC20Metadata.name() (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#17) (function)
Rename the local variables that shadow another component.
Additional information: link
GlobalGuideToken.constructor(string,string,uint256,address)._feeReceiver (contracts/GlobalGuideToken.sol#142) lacks a zero-check on :
- feeReceiver = _feeReceiver (contracts/GlobalGuideToken.sol#144)
GlobalGuideToken.changeFeeReceiver(address)._feeReceiver (contracts/GlobalGuideToken.sol#214) lacks a zero-check on :
- feeReceiver = _feeReceiver (contracts/GlobalGuideToken.sol#215)
Check that the address is not zero.
Additional information: link
Address.verifyCallResult(bool,bytes,string) (@openzeppelin/contracts/utils/Address.sol#201-221) uses assembly
- INLINE ASM (@openzeppelin/contracts/utils/Address.sol#213-216)
GlobalGuideToken.callDetectTransferRestriction(address) (contracts/GlobalGuideToken.sol#161-184) uses assembly
- INLINE ASM (contracts/GlobalGuideToken.sol#168-183)
Do not use evm assembly.
Additional information: link
GlobalGuideToken.onlyAdmin() (contracts/GlobalGuideToken.sol#269-272) compares to a boolean constant:
-require(bool,string)(admin[msg.sender] == true,Caller is not admin) (contracts/GlobalGuideToken.sol#270)
Remove the equality to the boolean constant.
Additional information: link
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#158-167)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (@openzeppelin/contracts/access/Ownable.sol#61-63)
decimals() should be declared external:
- ERC20.decimals() (@openzeppelin/contracts/token/ERC20/ERC20.sol#87-89)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#201-210)
symbol() should be declared external:
- ERC20.symbol() (@openzeppelin/contracts/token/ERC20/ERC20.sol#70-72)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (@openzeppelin/contracts/token/ERC20/ERC20.sol#101-103)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#113-117)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#181-185)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (@openzeppelin/contracts/access/Ownable.sol#69-72)
name() should be declared external:
- ERC20.name() (@openzeppelin/contracts/token/ERC20/ERC20.sol#62-64)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#136-140)
Use the external attribute for functions never called from the contract.
Additional information: link
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
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 Telegram link on the website
Unable to find token on CoinGecko
Additional information: link
Unable to find token on CoinMarketCap
Additional information: link
Token is not listed at Mobula.Finance
Additional information: link
Unable to find token on CoinHunt
Additional information: link
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).
Unable to find Blog account (Reddit or Medium)