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ChainGuard Web3 security banner Use this quick start to install ChainGuard, trigger your first scan, and understand the most important signals you will see in the extension.

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Installation

1

Download Extension

Visit the Chrome Web Store and click Add to Chrome (also compatible with Brave, Opera, and Edge).
# Direct link
https://chromewebstore.google.com/detail/chainguard-smart-wallet-s/kdfapkdbgfgopaakhkbogfhahklhbnlj?utm_source=item-share-cb
2

Pin to Toolbar

Click the puzzle icon in your browser toolbar and pin ChainGuard for easy access.
3

Start Browsing

Navigate to any Web3 site. ChainGuard automatically activates and begins scanning.

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First Scan

Once installed, ChainGuard initializes its WASM core and establishes a secure WebSocket connection. 
// [Internal Log] Core Initialization
[INFO] Loading @chainguard/core-wasm v1.2.4... OK
[INFO] Initializing ThreatEngine...
       - PhishingModel: LOADED (14ms)
       - ContractAnalyzer: READY (22ms)
       - SimulationEnv: CONNECTED (ws://node-cluster-main:8080)
[READY] System active. Event loop started.
When you visit a dApp, the analysis pipeline triggers:
  1. DNS Resolution & Reputation: Checks IP against global blocklists.
  2. TLS Handshake Inspection: Verifies certificate chain and issuer trust.
  3. DOM Mutation Observer: Scans for injected web3 provider hooks.
  4. Heuristic Analysis: Evaluates entropy of page content for obfuscation.
You’ll see the ChainGuard icon change color based on threat level:
  • 🟢 Green: Safe. Proceed normally.
  • 🟡 Yellow: Caution. Review warnings before proceeding.
  • 🔴 Red: Dangerous. The site is blocked. Do not proceed.

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Extension Popup

Click the ChainGuard icon to open the popup interface:

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Analysis Module

View real-time security analysis of the current page: 
{
  "url": "https://app.uniswap.org",
  "riskScore": 5,
  "status": "verified",
  "checks": {
    "phishing": "passed",
    "malware": "passed",
    "ssl": "valid",
    "domainAge": "2847 days"
  }
}

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My Transactions Module

Monitor your recent transaction history with security annotations: 
{
  "transactions": [
    {
      "hash": "0x7a8f...",
      "type": "swap",
      "riskScore": 12,
      "status": "completed",
      "timestamp": "2024-01-15T14:32:00Z"
    }
  ]
}

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Tracker Module

Set up alerts for wallet addresses and contracts you want to monitor: 
interface TrackerConfig {
  address: string;
  alertThreshold: number;  // Risk score threshold
  notifyOn: ('transaction' | 'approval' | 'transfer')[];
}

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Configuration

Access settings by clicking the gear icon in the popup:

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Advanced Configuration (cg-config.json)

For enterprise deployments or power users, you can import a JSON configuration: 
{
  "policy": {
    "autoBlock": true,
    "riskThreshold": 75,
    "allowedChains": [1, 56, 137, 42161],
    "simulation": {
      "timeout": 5000,
      "traceLevel": "full"
    }
  },
  "privacy": {
    "telemetry": false,
    "localProcessingOnly": false
  },
  "integrations": {
    "customRpc": "https://eth-mainnet.alchemyapi.io/v2/...",
    "webhookSink": "https://internal-security.corp/events"
  }
}
ChainGuard never stores private keys or seed phrases. All analysis is performed on public blockchain data only.

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Next Steps

Installation Details

Browser-specific installation guides

Anti-Phishing

Learn how URL scanning works