Web Page Change Monitor - Track Website Changes & Get Alerts

Monitor any website for changes automatically. Track content updates, price changes, product availability, and news updates. Get instant alerts when pages change. Perfect for competitor monitoring, price tracking, and content surveillance.

🚀 Key Features

• Automatic Change Detection - Monitor websites for any content changes
• Multiple Comparison Methods - Text, HTML, or hash-based comparison
• Smart Filtering - Ignore specific elements (timestamps, ads, comments)
• Focus Monitoring - Monitor only specific page sections
• Change Threshold - Set sensitivity level for change detection
• Snapshot History - Save full page snapshots for comparison
• Batch Monitoring - Check multiple URLs at once
• Performance Optimized - Fast CheerioCrawler for static content

💡 Use Cases

• Price Monitoring - Track competitor prices and product availability
• Content Surveillance - Monitor news sites, blogs, or competitor content
• Competitor Tracking - Watch for changes on competitor websites
• Product Availability - Get notified when out-of-stock items return
• News Monitoring - Track breaking news and updates
• SEO Monitoring - Monitor meta tags and content changes

Included features

• Apify SDK - toolkit for building Actors
• Crawlee - web scraping and browser automation library

How it works

This template is useful when you're already familiar with the Apify SDK and Crawlee and want to start with a clean slate. It does not include puppeteer or playwright so install them manually and update the Dockerfile if you need them.

Resources

• Node.js tutorials in Academy
• Video guide on getting data using Apify API
• Integration with Make, GitHub, Zapier, Google Drive, and other apps
• A short guide on how to create Actors using code templates:

Getting started

For complete information see this article. To run the Actor use the following command:

$apify run

Deploy to Apify

Connect Git repository to Apify

If you've created a Git repository for the project, you can easily connect to Apify:

1. Go to Actor creation page
2. Click on Link Git Repository button

Push project on your local machine to Apify

You can also deploy the project on your local machine to Apify without the need for the Git repository.

1. Log in to Apify. You will need to provide your Apify API Token to complete this action.

   $apify login
   

2. Deploy your Actor. This command will deploy and build the Actor on the Apify Platform. You can find your newly created Actor under Actors -> My Actors.

   $apify push
   

Documentation reference

To learn more about Apify and Actors, take a look at the following resources:

• Apify SDK for JavaScript documentation
• Apify SDK for Python documentation
• Apify Platform documentation
• Join our developer community on Discord

Quick start

Store page: https://apify.com/scrappy_garden/web-page-change-monitor

Paste this into Input and click Run:

{
  "urls": [
    {
      "url": "https://example.com"
    }
  ],
  "proxyConfiguration": {
    "useApifyProxy": false
  }
}

Outputs (what you get)

• Dataset: Dataset items typically include fields like: url, hasChanged, changePercentage, changedAt, previousCheckAt, changesSummary.
• Key-value store: None detected in code.

Tips (trust + predictable results)

• Start with 1–3 URLs to validate behavior, then scale up.
• If a target blocks requests, enable Proxy and/or slow down concurrency in Input.
• Use the SUMMARY / REPORT keys (when present) for automation pipelines and monitoring.

Related actors

• broken-link-checker (https://apify.com/scrappy_garden/broken-link-checker)
• canonical-url-checker (https://apify.com/scrappy_garden/canonical-url-checker)
• meta-tag-analyzer (https://apify.com/scrappy_garden/meta-tag-analyzer)
• security-headers-checker (https://apify.com/scrappy_garden/security-headers-checker)

Search keywords

web page change monitor, web page change monitor - track website changes & get alerts, website audit, seo