How to Spot a Crypto Presale Scam: 15 Proven Checks
August 3, 2026

A crypto presale scam is usually detectable in fifteen minutes using only public information. Check whether the contract source is verified, whether liquidity is locked, whether the legal entity is named, and whether the tokenomics arithmetic actually totals 100%. Most losses were avoidable. We have applied the same fifteen checks to BetFi at the end, including the two where we do not score full marks.
Major Points Covered
- Five contract checks: verified source, renounced ownership, mint function, liquidity lock and honeypot test.
- Five team and paperwork checks, including whether the allocation percentages genuinely sum to 100%.
- Five marketing checks covering price predictions, manufactured urgency and unverifiable partnerships.
- The check almost everyone skips: whether lock-ups are enforced on-chain or by manual promise.
- BetFi scored against its own checklist, disclosing that team, ecosystem and airdrop lock-ups are enforced off-chain.
Direct Answers to Common Questions
You spot a crypto presale scam by verifying claims that can be checked independently rather than trusting the presentation. Paste the contract address into BscScan and confirm the source code is verified. Search the code for an uncapped mint function. Confirm liquidity is locked with a third-party locker and note the unlock date. Look for a named legal entity with a registration number you can look up. Then check whether the allocation percentages total exactly 100% and match their stated token counts. Fraudulent projects are usually competent on presentation and hollow on verification, so the checkable items are where they leave a trace.
Understanding the Fifteen Checks
The uncomfortable truth about presale losses is that most were avoidable. Not through insider knowledge or technical expertise, but through a short sequence of checks that almost nobody performs before sending funds.
What follows works on any presale, uses only public information, and takes about half an hour.

Checks 1 to 5: The Contract Itself
Is the contract source code verified? Paste the address into BscScan. A green tick on the Contract tab means the deployed bytecode has been matched against published source. Raw bytecode only means nobody can audit what the contract does. That is a stop, not a caution.
Has ownership been renounced, and should it have been? A renounced contract cannot be altered by its deployer. But renouncement is not automatically good, since a project still fixing bugs legitimately retains ownership. What matters is that the project states its position and explains why. Silence on ownership is the warning sign.
Is there an unlimited mint function? Search the verified source for mint. An owner-callable mint with no hard cap means total supply is a suggestion rather than a fact.
Is liquidity locked, and for how long? Check the lock exists on a third-party locker, check the unlock date, and check the percentage locked. A three-month lock on 40% of liquidity is not a meaningful lock.
Does the token pass a honeypot test? Some contracts permit buys and silently block sells. Free checkers simulate a sell against the live contract. It takes ten seconds.
Checks 6 to 10: The Team and the Paperwork
Is there a named legal entity? Not a brand name, but a registered company with a jurisdiction and a number you can look up. A project that will not say who is legally responsible for holding your money has answered your question.
Are team members identifiable? Anonymity is not automatically fraudulent, and several major protocols began that way. But it shifts every risk onto you and should be priced accordingly. Stock-photo headshots with invented names are worse than honest anonymity.
Does the whitepaper contain actual numbers? A real whitepaper commits to total supply, allocation percentages, lock-up durations and reward formulas. If you cannot extract a table from it, it is a promotional deck.
Does the tokenomics arithmetic add up? Sum the percentages. They should reach exactly 100%. Multiply each by total supply and confirm the token counts match. Two minutes with a calculator.
Are lock-ups enforced on-chain or by promise? This is the check almost everyone skips and it may matter most. A vesting schedule enforced by smart contract cannot be broken. One described in a document and executed manually is a statement of intent. Both are legitimate structures, but you are taking a completely different risk in each case.
Checks 11 to 15: The Marketing
Are there price predictions? Any project publishing "100x" or a specific future price is telling you how it views regulation, and how it views you.
Is the urgency real or manufactured? Genuine scarcity has a mechanism: a fixed allocation, a stated close date, a published tier ladder. Manufactured urgency is a countdown that resets.
Are partnerships named and verifiable? Logo walls are cheap. Pick two and search for the partnership from the other company's side.
Does the referral structure reward recruitment over product? Referral rewards are normal. Structures where earnings depend primarily on recruitment rather than the product working are not.
What does the disclosure page say? Read the footer, then compare it to the headlines. If the footer says "nothing here is investment advice" while the blog says "the smart money move of the year", the lawyers disagree with the marketing team.
Applying the Checklist to BetFi
It would be hollow to publish this and claim an exemption.
Where BetFi scores well. The platform operates under a named registered entity, Fabulous Ltd., registration number 15714, registered in the Union of Comoros. BFC is a BEP-20 token on BNB Smart Chain with a fixed total supply of 1,000,000,000 created in a single Token Generation Event, with no ongoing mint. The allocation table sums to exactly 100% and every percentage matches its token count.

Here is the full allocation, which you can check against the arithmetic in check 9:
- Presale — 50,000,000.00 BFC; 5.0%
- Liquidity Pool — 2,000,000.00 BFC; 0.2%
- Marketing — 12,000,000.00 BFC; 1.2%
- Airdrops — 12,000,000.00 BFC; 1.2%
- Team — 24,000,000.00 BFC; 2.4%
- Ecosystem — 36,000,000.00 BFC; 3.6%
- Loyalty — 864,000,000.00 BFC; 86.4%
- Total — 1,000,000,000.00 BFC; 100.00%
Where BetFi scores less well. Lock-ups for team, ecosystem and airdrop allocations are enforced off-chain. The whitepaper states this openly under the heading "No Vesting Contract, Manual Lock-In Applied". Under check 10, those lock-ups rest on conduct rather than on code, and you should weigh that accordingly.

What a Failing Grade Looks Like
You will rarely find a project failing all fifteen checks. Fraud is usually competent on the easy ones and hollow on the hard ones: a slick site, an audit badge linked to an audit of a different contract, a named team that turns out to be three stock photos.
The pattern to watch for is strength on presentation and weakness on verification. Anything checkable independently is where a fraudulent project must either be honest or leave a trace.
A Few Rules Before You Send Anything
- Never connect a wallet from a link in a direct message. Type presale URLs manually or use your own bookmark.
- Send a small test transaction first. It costs one extra fee and catches the errors that cannot be reversed.
- Use a fresh wallet for presales, not the one holding your main balance.
- Size the position assuming total loss is possible, however good the project looks.
How BetFi Approaches This
BetFi publishes its tokenomics, lock-up schedule and audit so that the checks above can be run against it rather than taken on trust. That includes the parts that do not flatter us, such as off-chain lock-up enforcement.
Run the checklist on us before you run it on anyone else. If something does not stand up, that is worth knowing before you participate, not after.
Frequently Asked Questions
How do I check if a crypto presale is a scam?
Start with the contract. Paste the address into BscScan and confirm the source is verified, search for an uncapped mint function, and check whether liquidity is locked with a third-party locker. Then confirm a named legal entity exists and that the allocation percentages total exactly 100%.
Is an audit enough to prove a presale is safe?
No. An audit reviews code at a specific commit. It does not verify the team's intent, the business model, or anything happening off-chain. Check the audit's scope statement and confirm the commit hash matches the deployed contract.
What is the biggest warning sign in a presale?
Specific price predictions. No one can forecast a token price, so a project publishing "100x" or a target figure is telling you something about how it views both regulation and its audience.
Does a locked liquidity pool guarantee safety?
No, but its absence is a serious concern. Check the percentage locked and the unlock date, not just whether a lock exists. A short lock on a minority of liquidity offers little protection.
Are anonymous teams always a scam?
No. Several major protocols launched anonymously. But anonymity moves every risk onto you, so it should be priced into your decision. Invented names with stock photos are a worse signal than honest anonymity.
