Website Change Detector

Monitor any website for content changes with automatic comparison between runs. Perfect for tracking price changes, content updates, stock availability, and more.

🎯 Features

• Multiple Comparison Modes: Text, HTML, or visual comparison
• CSS Selector Support: Monitor specific page sections
• Ignore Patterns: Filter out timestamps, ads, or dynamic content
• Diff Reports: Get detailed change summaries
• Automatic Snapshots: State persists between runs
• Proxy Support: Built-in Apify Proxy integration

📥 Input

Field	Type	Description
urls	array	URLs to monitor with optional selectors
compareMode	string	text, html, or visual
ignorePatterns	array	Regex patterns to ignore
saveSnapshots	boolean	Save state for next run

Example Input

{
    "urls": [
        {
            "url": "https://example.com/pricing",
            "selector": ".price-table",
            "name": "Pricing Page"
        },
        {
            "url": "https://example.com/blog",
            "selector": "article",
            "name": "Latest Blog Post"
        }
    ],
    "compareMode": "text",
    "ignorePatterns": ["\\d{4}-\\d{2}-\\d{2}", "Copyright \\d{4}"],
    "saveSnapshots": true
}

📤 Output

Each monitored URL produces a result object:

{
    "url": "https://example.com/pricing",
    "name": "Pricing Page",
    "selector": ".price-table",
    "changed": true,
    "changeType": "modified",
    "diffSummary": "+3 -2 lines",
    "addedContent": "New pricing: $99/month",
    "removedContent": "Old pricing: $79/month",
    "currentHash": "abc123...",
    "previousHash": "def456...",
    "checkedAt": "2024-01-15T10:30:00Z",
    "previousCheck": "2024-01-14T10:30:00Z"
}

🔄 Use Cases

1. Price Monitoring: Track competitor pricing changes
2. Content Alerts: Get notified when blog posts update
3. Stock Tracking: Monitor product availability
4. Compliance: Track terms of service changes
5. News Monitoring: Detect breaking news updates

⚡ Scheduled Runs

Set up scheduled runs to continuously monitor:

1. Go to Actor settings → Schedules
2. Create a new schedule (e.g., every hour)
3. The actor automatically compares with previous runs

💡 Tips

• Use specific CSS selectors to avoid false positives
• Add timestamps and ads to ignore patterns
• Start with text mode for best performance
• Use html mode to detect structural changes

🔧 Proxy Configuration

Uses Apify Proxy by default. For residential proxies:

{
    "proxyConfiguration": {
        "useApifyProxy": true,
        "apifyProxyGroups": ["RESIDENTIAL"]
    }
}

📊 Pricing

Suggested: $19/month flat rental for unlimited monitoring