TL;DR
An airdrop is a free distribution of tokens to wallet addresses, typically rewarding early users, community members, or protocol interactors as a growth and decentralization strategy.
Projects take a snapshot of wallet activity at a specific time and distribute tokens to qualifying wallets. Criteria vary: you might qualify by using a protocol (Jupiter airdropped JUP to swap users), holding specific tokens, being active in the community, or meeting on-chain activity thresholds. Airdrops are usually claimable through the project’s website within a set window.
Since airdrops reward usage, “airdrop farming” involves strategically using protocols before they launch tokens to qualify for future airdrops. Common strategies: use DEXs that haven’t launched tokens yet, provide liquidity on new protocols, bridge to emerging chains, and be an early user of testnet features. Major Solana airdrops (Jupiter, Tensor, Jito) have rewarded early users with thousands of dollars.
Fake airdrops are one of the most common crypto scams. Scammers send unsolicited tokens to your wallet, then create phishing sites where “claiming” the airdrop actually drains your wallet. Rules: never interact with tokens you didn’t expect. Only claim airdrops from official project websites (verify URLs carefully). Legitimate airdrops never ask for your seed phrase or require you to send tokens first.