Proxies for Airdrops: Sybil Risk, Project Rules and Responsible Use

Airdrops, testnets and sybil

An airdrop is when a crypto project distributes tokens to users, usually to reward early adopters. A testnet is a test network where people try a product before launch; some projects reward testers.

Sybil describes one person creating many fake identities, in this case many wallets, to take rewards meant for many different people. It distorts the project's test data and takes rewards from genuine users, so most projects say openly that they filter sybil activity before distribution.

How projects filter sybil activity

Every project has its own method and rarely publishes all of it, but in principle they combine several sources of signals rather than relying on one.

• The key point: a proxy changes one off-chain signal. Many wallets controlled by one person still show it in how those wallets are created, funded and used. That is why "anti-sybil proxy" marketing is a false promise.

Rules to read before you join

• Terms and eligibility criteria: is there a one-wallet-per-person limit, a ban on automated accounts or wallet farms?
• Restricted countries: many projects exclude certain countries for legal reasons. Using a proxy to fake your location and get around that breaks the terms and may break the law where you live. Do not do it.
• Verification requirements: if a project asks for identity verification, only use your own details.
• Bot and automation policy: some projects forbid scripts that complete tasks automatically.
• Tax and legal obligations on any assets you receive, wherever you are resident.

When using a proxy is legitimate

A proxy is a neutral networking tool. There are perfectly ordinary reasons to use one in Web3:

• Teams of real people: each member uses their own wallet and identity but works on company machines. One profile and one IP per person keeps everyone's accounts from being grouped simply because they share an office. See how to share proxies with a team.
• Developers testing their product: teams building a dApp or claim page need to check it displays and geo-restricts correctly. IPs in the United States, Singapore or Japan let them test as real local users would.
• Keeping your home IP private: you would rather websites and third-party services did not see your home connection. A proxy changes the IP they see but adds no encryption; see proxy vs VPN.
• A stable connection from one static IP for your own main wallet, so login history on related services stays consistent.

Wallet security matters more than the proxy

For most airdrop participants the biggest risk is not being filtered out but losing funds.

• Never enter your seed phrase into any website, form or message. Genuine claim pages never need it.
• Check the domain carefully before connecting a wallet; fake claim sites are everywhere.
• Use a separate wallet for trying new products, away from the wallet that holds your main assets.
• Do not install wallet extensions from unofficial sources or use browser profiles other people can access.
• Use proxies only from a clearly identified provider. An unknown free proxy should not sit between you and your wallet; see private vs shared proxies.
• If you use a proxy for privacy, confirm it with What Is My IP and the WebRTC leak test.

If you still want a proxy

For the legitimate cases above, VinaProxy proxies are dedicated static IPs over HTTP/HTTPS with username and password in ip:port:user:pass format, working in regular and antidetect browsers. Dedicated IPv4 is available in 7 countries and static ISP in Vietnam and the US. The airdrop proxy page has more detailed setup notes.

Whatever the use, the principles do not change: read the project's rules, take part as one real person with your own identity, and distrust any tool that promises to get you past the filters.

Frequently asked questions