Monitor Product Availability in Real Time
AI Detection
Smart algorithms that understand content changes, not just code diffs.
Instant Alerts
Get notified via Email, Slack, or Discord the moment a change is detected.
Visual Comparison
See side-by-side visual diffs to instantly spot layout shifts and visual bugs.
Daily/Hourly Checks
Flexible monitoring frequencies to suit your needs, from hourly to daily.
Product availability changes constantly on e-commerce sites. Items go out of stock, get restocked, or have their availability restricted by region. WatchDiff monitors these changes so you never miss a critical stock movement.
Track availability across competitor stores, supplier catalogs, or marketplace listings. The AI engine detects status changes like out of stock, back in stock, limited availability, and pre-order transitions.
For procurement teams, knowing when a supplier restocks a critical component can mean the difference between meeting and missing production deadlines. WatchDiff provides the early warning system you need.
For competitive intelligence, tracking when competitors run out of stock on key products reveals demand patterns and supply chain vulnerabilities. Use this data to time your own promotions and inventory decisions.
How It Works
Add Product URLs
Enter the product page URLs you want to track for availability changes. Works with any public e-commerce or supplier site.
AI Stock Detection
WatchDiff monitors pages and uses AI to identify availability status changes, distinguishing them from other page updates.
Instant Stock Alerts
Get notified immediately when availability changes. Receive clear reports showing the previous and current stock status.
Frequently Asked Questions
How quickly does WatchDiff detect stock changes?
Detection speed depends on your check frequency setting. With hourly monitoring, you will know about availability changes within an hour. For time-sensitive products, hourly checks on the Pro or Business plan are recommended.
Can WatchDiff distinguish between out of stock and discontinued?
WatchDiff reports the visible page content changes. If a product page shows out of stock versus discontinued or removed entirely, the AI change report will capture and explain the difference.
Does this work for monitoring my own product availability?
Absolutely. Many users monitor their own e-commerce listings to verify that availability displays correctly across channels. It serves as an external QA check for your own storefront.
Explore More Use Cases
Discover other ways to use WatchDiff for your monitoring needs.
Competitor Price Monitoring
Automatically track competitor pricing across any e-commerce site. Get instant alerts when prices change so you can respond before losing sales.
Marketplace Change Detection
Automatically detect changes on marketplaces like Amazon and eBay. Get real-time alerts on listing updates, rule changes, and category shifts.
Supplier Inventory Monitoring
Automatically monitor supplier stock availability. Get instant alerts when products come back in stock or go out of stock so you can reorder first.
Price Change Alerts
Get instant alerts when product prices change on any e-commerce site. WatchDiff monitors prices automatically with AI-powered detection.
Product Pages
Monitor competitor and supplier product page changes automatically. Detect updates to descriptions, images, prices, and specifications with AI-powered alerts.
Terms of Service
Automatically track changes to terms of service and platform policies. Stay informed about updates that impact your business with instant alerts.
Competitor Landing Pages
Track changes to competitor landing pages automatically. Get alerts when messaging, offers, or designs change with AI-powered monitoring.
New Competitor Products
Get alerts when competitors launch new products or update their catalog. AI-powered monitoring catches changes you would miss manually.
Shipping Policies
Track changes to competitor shipping rates, free shipping thresholds, and delivery policies. Get alerts when competitors adjust their shipping strategy.