Website Change Detector

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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

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