Monitor Supplier Stock Levels 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.
Keeping track of supplier stock availability is a constant challenge for e-commerce businesses. When a high-demand item becomes available, every minute counts to restock before your competitors.
WatchDiff monitors your supplier product pages and sends automatic alerts whenever stock status changes. Whether a product comes back in stock or goes out of stock, you know immediately.
This is especially valuable for businesses selling high-demand or limited-inventory products. Instead of manually checking dozens of supplier pages every day, WatchDiff does it automatically.
Set up monitoring for as many suppliers and products as you need. The system works with any supplier website that displays availability information on public pages.
How It Works
Add supplier product pages
Paste the URLs of your supplier product pages. WatchDiff automatically identifies availability indicators on each page.
Continuous stock monitoring
The system checks each page on your chosen schedule and detects changes in stock status: available, out of stock, pre-order, or limited quantity.
Instant availability alerts
When stock status changes, you receive an immediate email alert so you can place orders ahead of competitors.
Frequently Asked Questions
Does WatchDiff detect when a product comes back in stock?
Yes. WatchDiff monitors the full page content and detects any change, including transitions from out-of-stock to in-stock status.
Does it work with supplier sites that require login?
WatchDiff monitors public web pages. For pages behind authentication, we recommend checking whether a public-facing availability page exists.
How many supplier products can I monitor?
The number of monitored pages depends on your plan. Higher-tier plans let you track hundreds of supplier pages simultaneously.
Explore More Use Cases
Discover other ways to use WatchDiff for your monitoring needs.
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Price Change Alerts
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Product Pages
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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.
Product Availability
Track product stock status and availability changes on any website. Get alerts when items go in or out of stock with AI-powered monitoring.