Three chains, three jobs
Avalanche's primary network is not one chain but three, each specialised.
The C-Chain is EVM-compatible and is where essentially all application activity lives. If you have used Avalanche, you have used the C-Chain. It behaves like any other EVM network — same addresses, same tooling, same contracts.
The X-Chain handles asset creation and transfer using a model closer to UTXO than to accounts. It was the original design for high-throughput value transfer.
The P-Chain coordinates validators, staking and subnet creation. If you stake AVAX or run a validator, that happens here.
The friction is that these use different address formats and different data models, and moving assets between them is an explicit cross-chain transfer rather than an internal operation. Snowtrace is the only explorer that lets you follow that movement — and given how many people have been confused by funds "disappearing" between chains, that alone earns it the recommendation.
Moving between C, X and P
An asset on the C-Chain is not automatically available on the P-Chain. To stake AVAX you must export it from the C-Chain and import it to the P-Chain, which is two transactions on two chains with two different identifiers.
This produces the pattern that appears throughout our reviews — Arbitrum L1/L2 messages, TON message chains, Polkadot XCM. An action becomes several records and the identifier does not carry across. Searching for the export hash on the destination chain finds nothing, and the reasonable conclusion is that the funds are gone.
They are not. They are in the import, waiting to be completed or already completed under a different hash. Snowtrace shows both sides, which converts a frightening situation into a two-minute check.
The general rule
Any time a system spans chains or is asynchronous, one user action becomes several on-chain records with different identifiers. Before concluding that funds have vanished, check whether you are searching for the right identifier on the right chain. In our experience that explains the overwhelming majority of these cases.
Subnets, and the explorer problem they create
Avalanche's architectural bet is subnets — independent networks with their own validators, rules and, often, their own virtual machines. A subnet can be permissioned, can use a custom gas token, and can be tuned for a specific application.
For an explorer this is a genuine problem. Each subnet is effectively a separate chain needing separate indexing, and there are many. Snowtrace, through Routescan's wider network, covers a substantial number, but quality varies and a small subnet may have minimal support.
The C-Chain is where the mature tooling is. If you are working on a subnet, check what explorer coverage exists before you rely on it — this is the same instance-quality caution that applies to Blockscout deployments, and for the same structural reason.
API and staking data
Snowtrace exposes Etherscan-compatible endpoints for the C-Chain, which means EVM code generally works with a base-URL change. We found them usable without a key at low volume, which is increasingly unusual.
The P-Chain staking data is the more distinctive offering. Avalanche staking has specific properties — a minimum stake, a minimum duration, and delegation limited by validator capacity — and Snowtrace surfaces validator uptime, delegation capacity and fee rates.
Uptime is the field that matters: Avalanche requires a validator to meet an uptime threshold to earn rewards at all. A validator below it earns nothing, and so do its delegators. That is a binary outcome rather than a gradual one, which makes it worth checking before delegating.
What our reference tests showed
Our Avalanche testing focused on the thing that distinguishes this explorer: movement between the three chains.
On the C-Chain the standard EVM reference items behaved exactly as expected — verified contract read, proxy resolution, ERC-20 transfer, a failed call with its revert reason. Nothing surprising, which is correct for an EVM-compatible chain.
The cross-chain test was the informative one. We exported a small amount of AVAX from the C-Chain and imported it to the P-Chain, then tried to follow it the way a confused user would: by searching for the export transaction hash on the destination.
That returned nothing, as expected. The export and import are separate transactions with separate identifiers, and the hash simply does not exist on the other chain. This is precisely the situation that convinces people their funds have been lost.
Snowtrace resolved it. Searching the source address on the P-Chain showed the import, and the two halves could be matched by amount and timestamp. It is not as elegant as Arbiscan's explicit message tracker, which links both sides directly, but it was sufficient to establish within a minute that nothing was missing.
The P-Chain validator data checked out against the network's own published figures, including uptime. We deliberately looked at a validator sitting near the uptime threshold, and the explorer showed the figure clearly enough to make the delegation decision obvious.
The gap remains explanatory. Every field we needed was present. Nothing on the page tells a new user that the three-chain architecture exists, which is why they arrive confused in the first place.