Website Change Monitor - Track Page Changes with AI

Monitor websites for content changes. Get notified when pricing, inventory, competitor pages, or any web content changes. Uses Firecrawl for intelligent change detection.

Features

• Markdown Comparison - Full page content comparison using git-style diffs
• JSON Extraction - Track specific data fields like prices, stock levels, or product info
• Change Notifications - Only notify when actual changes are detected
• Webhook Integration - Send alerts to Zapier, Make, n8n, or any endpoint
• Demo Mode - Test with realistic sample data before running actual checks
• Scheduled Monitoring - Set up recurring checks via Apify schedules

Quick Start

{
  "input": "your input here"
}

Demo Mode

Set demoMode: true to test with sample data (no charges). When you're ready for real results, set demoMode: false or omit it.

{
  "demoMode": true,
  ...
}

Input Parameters

{
  "urls": ["https://example.com/pricing", "https://competitor.com"],
  "comparisonMode": "markdown",
  "notifyOnChange": true,
  "webhookUrl": "https://hooks.zapier.com/hooks/catch/...",
  "firecrawlApiKey": "fc-...",
  "demoMode": false
}

Input Parameters

Parameter	Type	Default	Description
urls	array	[]	URLs to monitor for changes
comparisonMode	string	"markdown"	"markdown" for full page, "json" for structured data
jsonSchema	object	-	Schema for JSON mode (defines fields to track)
notifyOnChange	boolean	true	Only output results when changes detected
includeScreenshots	boolean	false	Capture before/after screenshots
webhookUrl	string	-	URL for webhook delivery
firecrawlApiKey	string	-	Your Firecrawl API key
demoMode	boolean	true	Run with sample data

Output Format

Each result includes:

{
  "url": "https://example.com/pricing",
  "hasChanged": true,
  "changeType": "content_changed",
  "changeSummary": "Price changed from $99 to $79",
  "previousSnapshot": "# Pricing\n- Basic: $99/mo...",
  "currentSnapshot": "# Pricing\n- Basic: $79/mo...",
  "diff": "@@ -5,2 +5,2 @@\n-Basic: $99\n+Basic: $79",
  "changedFields": ["pricing.basic"],
  "checkedAt": "2025-01-15T10:30:00.000Z"
}

Change Types

Type	Description
no_change	Content unchanged since last check
content_changed	Text or values have changed
structure_changed	Page layout or HTML structure changed
new_content	New sections or elements added
removed_content	Content was removed from the page

Pricing

This actor uses pay-per-event billing: This actor uses pay-per-event pricing:

Event	Description	Price
page_checked_markdown	Per page checked using markdown mode	$0.01
page_checked_json	Per page checked using JSON extraction mode	$0.05
change_detected	Per page where a change was detected	$0.02

Example costs:

• Monitor 100 URLs daily (markdown, 10% changes): 100 x $0.01 + 10 x $0.02 = $1.20/day
• Monitor 50 URLs (JSON mode, 20% changes): 50 x $0.05 + 10 x $0.02 = $2.70

Use Cases

• Price Monitoring - Track competitor pricing changes
• Inventory Tracking - Know when products come back in stock
• Content Changes - Monitor competitor content and messaging
• Compliance Monitoring - Track changes to terms of service or policies
• SEO Monitoring - Watch for meta tag and content changes
• Job Postings - Get notified of new job listings

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Built by John Rippy | Actor Arsenal