Disclosure: Jumpbit builds the tool used in this guide. It is listed in the directory under the same rules as every other tool, see the editorial policy.
What the grade means
Jumpbit Rug Check combines a simulated sell, Token-2022 extensions, holder structure, developer history and liquidity into a 0 to 100 score and an A to F grade, with published weights instead of yes or no flags. Its own note says an A means it found no technical traps and no obvious concentration problems, and that tokens can still lose value for other reasons.
How to read it
- Authority flags matter most: live mint, freeze or update authority costs points.
- Concentration is graded by how much supply sits with a few wallets, rather than one flag for 15% and 50%.
- Liquidity looks at pool depth and how much LP is burned or locked, rechecked over time.
Raising a low grade
Jumpbit says most points come back by revoking mint, freeze and update authority and by burning or locking LP, then checking again. See how to revoke authorities and how to burn LP tokens. Open Rug Check.