> ## Documentation Index
> Fetch the complete documentation index at: https://docs.layerzero.network/llms.txt
> Use this file to discover all available pages before exploring further.

# LayerZero Scan Overview

> Step-by-step guide to layerzero scan overview using LayerZero V2. Build and deploy omnichain applications with crosschain messaging. Follow step-by-step dev...

LayerZero Scan is a **block explorer** specifically for observing crosschain transaction activity facilitated by LayerZero. Here’s how to get started with navigating it:

## What Is LayerZero Scan?

**LayerZero Scan** is designed to display crosschain messaging details such as:

* Transaction hashes and bridging events across multiple chains
* Source and destination chain info
* Status of messages (in-flight, delivered, failed)
* Onchain addresses (contracts, wallets) participating in bridging

The interface consolidates data from multiple blockchains to provide a single view of crosschain messaging.

## Key Sections in LayerZero Scan

1. **Search Bar**

   * Allows you to search by crosschain transaction hash, contract address, or user address.
   * If you have either the source or destination transaction, you can directly see that message’s status across source and destination.

2. **Recent Transactions / Messages**

   * Displays the most recent crosschain messages.
   * For each message, you can see:
     * The **source chain** and **destination chain**
     * A short snippet of addresses involved
     * A **timestamp** of when it was sent

3. **Detailed Message View**

   * When you select a transaction or message, you’ll see a breakdown of:
     * **Gas usage**
     * **Bridging fees**
     * **Source Tx Hash** (links to the chain’s native block explorer, e.g., Etherscan)
     * **Destination Tx Hash** (if it’s already executed)

4. **Address / Contract Page**

   * Searching for an address (or contract) shows all crosschain messages that address is involved in.
   * Great for debugging bridging from a specific user or checking on a particular protocol’s bridging activity.

5. **Default Configurations Per Chain Pathway**

   LayerZero Scan now includes a feature to check the default configuration settings for each chain pathway. This section lets you view and verify key settings that govern how messages are routed across chains. The default configuration display includes:

   * **From/To:** The source and destination chains for the pathway.
   * **Send Library:** The default library used for sending messages.
   * **Receive Library:** The default library used for receiving messages.
   * **DVN 1 & DVN 2:** The default Decentralized Verifier Networks used for message verification.
   * **Executor:** The default executor responsible for processing messages.
   * **Send Confirmations / Receive Confirmations:** The number of confirmations required on each side.

   A **Reset** option is provided to revert any custom configurations back to these defaults.

   | From/To    | Send Library | Receive Library | DVN 1 | DVN 2 | Executor   | Send Confirmations | Receive Confirmations |
   | ---------- | ------------ | --------------- | ----- | ----- | ---------- | ------------------ | --------------------- |
   | ETH/Solana | Library A    | Library B       | DVN A | DVN B | Executor X | 5                  | 3                     |

6. **Statistics / Additional Tabs**
   * Depending on the version, you might see stats like total messages, volume, or top bridging pairs.

## Why Use LayerZero Scan?

* **Visibility**: View exactly how a crosschain transaction or bridging message was routed.
* **Debugging**: If your crosschain message fails, you’ll see error statuses or partial deliveries.
* **Confirming**: Verify that your crosschain transaction has reached finality. See [Message Statuses](/v2/concepts/troubleshooting/debugging-messages#confirming) and the [Scan API status reference](./api#response-status-reference) for details.

## Next Steps

* If you want to automate data retrieval from these crosschain events, check out the [`LayerZero Scan API`](./api) or the [`Endpoint Metadata`](../endpoint-metadata) for programmatic solutions.

<Info>
  ### Terms of Use

  By using the LayerZero Scan API, you agree to the [**LayerZero Scan API Terms of Use**](./terms).
</Info>