Checking the destination address before you swap

Every swap begins with an address. You copy it, you paste it, you send. That single string of characters is the only thing standing between your funds and their destination. Getting it right is straightforward. Getting it wrong is often irreversible.

Here is what actually happens when you swap through a site like this one. The exchange provider gives you a deposit address - a place to send your crypto. The provider monitors that address. When your transaction confirms on the blockchain, the provider takes your coins, executes a trade on whatever liquidity they use, and sends the result to the wallet you specified. The whole process takes minutes on a fast chain, longer on a congested one. You do not need to trust the provider personally. You need to trust that address, and you need to know what to check before you send to it.

How to tell if a swap site is reusing deposit addresses across multiple users is one of the first things you should investigate. A legitimate provider generates a fresh deposit address for every swap. If you see the same address offered to you that you saw in a screenshot from a friend, or if the provider's interface shows you an address that has history on the block explorer, stop. Reused addresses mean the provider is not tracking individual swaps properly. That is a red flag. Look at the address on a block explorer before you fund it. If it has incoming transactions from multiple different senders, do not use it.

Before you send anything, how to test a deposit address with a tiny amount before sending the full swap is the single most effective safeguard you have. Send a few cents worth of the coin you intend to swap. Wait for that transaction to confirm. Check that the provider's interface shows the test deposit. If it does not, you have caught a problem without losing real money. If it does, you know the address works and the provider is paying attention. This test costs you the transaction fee and a few minutes. That is cheap insurance.

Once you are satisfied with the address, what information to screenshot before you click confirm on any swap matters more than most people realize. Your browser is ephemeral. Tabs close. Sessions expire. Before you send, capture the swap details: the deposit address, the amount you are sending, the token you expect to receive, the destination wallet address, and any reference number or swap ID the provider displays. Also screenshot the provider's terms or any message about processing time. If something goes wrong, those screenshots are your only evidence. Without them, you are guessing.

When you send the main amount, watch the blockchain. How to read a swap transaction on a block explorer to find where your funds went is a skill that pays for itself the first time a swap feels slow. Open the block explorer for the chain you used. Paste your transaction ID. Look for the "to" address - that is the deposit address you sent to. Confirm it matches what the provider gave you. Then look at the transaction's confirmations. Most providers require a certain number of confirmations before they act. If the transaction is confirmed but nothing has happened, check whether the provider's interface shows the incoming transaction. If it does not, there is a problem.

Sometimes the provider's interface shows nothing even though the blockchain confirms the deposit. What to do when a swap completes on the blockchain but the exchange shows nothing is a frustrating but common situation. First, wait. Some providers batch processing. Give it ten minutes. If nothing changes, find the provider's support channel. Provide your transaction ID, the deposit address, and the screenshots you took. Do not send more funds. Do not try the same swap again. The funds are not lost; they are sitting in the provider's wallet. The provider needs to credit them to your swap. That is a database fix, not a recovery operation. But you need to reach a human who can make that fix.

A worse scenario: the swap succeeds on the provider's end, but what to do when your swap succeeds but the received token does not appear in your wallet. This usually means one of two things. Either you are looking at the wrong wallet, or you have not added the token to your wallet's token list. Check the destination address on the block explorer. If the transaction shows the token arriving at that address, the token is there. Your wallet software simply does not display it. Add the token contract address manually. If the token is not on the block explorer at the destination address, the provider sent it somewhere else. That is a support issue. Provide your swap ID and the expected destination address.

The most distressing scenario involves identity verification. What to do when an exchange asks for a selfie with your ID after your swap is stuck is a situation that should not happen on a properly run swap site, but it does. Some providers outsource their compliance to third parties that flag transactions as suspicious. If you are asked for a selfie and ID, you have a choice. You can comply, which means the provider will eventually release your funds if you pass their checks. Or you can refuse, in which case the funds may stay frozen indefinitely. There is no legal requirement that any swap provider must return your funds without verification. This is why testing with a small amount matters so much - it lets you discover whether the provider has intrusive KYC policies before you commit real money.

Finally, how to check if a swap provider has an active bug bounty or security contact tells you something about their maturity. A provider that publishes a security contact or runs a bug bounty is a provider that understands they can be hacked. That is a good sign. A provider with no visible security contact is a provider that has not thought about what happens when someone finds a vulnerability in their code. Check their website footer, their documentation, or a site like Immunefi. If you find nothing, assume they are unprepared.

Every swap carries risk. The blockchain does not care about your intentions. It executes exactly what the transaction says. Your job is to verify that the transaction says what you intend. Check the address. Test with a tiny amount. Screenshot everything. If something goes wrong, act methodically with the evidence you saved. That is the difference between a recoverable problem and a permanent loss.