Site Spy Autor: Vitaly Kuprin

Track and monitor website changes with this web extension

Site Spy - Track Website Changes Effortlessly

Never miss important updates on your favorite websites. Site Spy automatically detects and highlights changes on any webpage you're tracking.

Key Features:

• Dual Tracking Options:
• Track Current Page — Leave the URL field empty and click the button to instantly add the page you're viewing
• Track Any URL — Enter any website URL manually to monitor it
• Automatic Change Detection — Set custom check intervals and receive instant notifications when content changes
• Manual Change Detection — Check any website for updates with a single click
• Visual Diff Viewer — See exactly what changed with side-by-side comparisons highlighting additions and removals
• Snapshot Timeline — Browse complete change history and compare any two historical versions
• Smart Tagging System — Organize your tracked websites with customizable color-coded tags
• Flexible Notifications — Choose between browser notifications, optional sound alerts, or silent monitoring
• Unlimited Monitoring — Track as many websites as you need with no artificial limits
• Clean Interface — Simple, intuitive design that stays out of your way

What Can Be Tracked:

• Any publicly accessible website using HTTP or HTTPS
• News sites, blogs, documentation pages
• Product pages, pricing pages, job listings
• API documentation, changelog pages
• Any web content that doesn't require authentication

What Cannot Be Tracked:

• Browser internal pages (chrome://, about:, edge:// URLs)
• Pages requiring login or authentication (you'll see an error in the extension)
• Local files (file:// URLs)
• Password-protected or private content

Perfect For:

• Monitoring competitor websites and pricing changes
• Tracking documentation updates and API changes
• Following news sites and blog posts
• Watching product availability and stock updates
• Keeping tabs on job postings and application deadlines

How It Works:

1. Click the Site Spy icon in your browser toolbar
2. To track the current page: Simply click "Track Current Page" button (leave URL field empty) — If you're on a restricted page, you'll see a warning message
3. To track any URL: Enter the website URL in the input field and click "Track Entered URL"
4. Click the diff icon next to any tracked website to check for changes
5. View detailed change comparisons with highlighted additions and removals

Note: The extension will show clear error messages if a page cannot be tracked due to browser restrictions or authentication requirements.

Stay informed. Track smarter. Monitor with confidence.