Whether you are a shopper waiting for the best deal or a business tracking competitor pricing, comparing the same product across multiple retailers is tedious. Amazon, Walmart, Target, Best Buy, and independent stores all have different URLs, layouts, and ways of displaying prices. Checking them manually means opening dozens of tabs and trying to remember which store had what price last week.
PageCrawl's product comparison feature automates this entirely. Add the product pages you care about, and PageCrawl automatically identifies they are the same product, groups them together, and shows you a side-by-side price comparison. Set alerts to get notified when a price drops, when a store becomes the cheapest, or when the price gap between retailers gets unusually large.
Automatic Product Matching
When you add product pages from different retailers, PageCrawl automatically recognizes when they are the same product and groups them. Add a laptop from Amazon, the same model from Best Buy, and again from Walmart, and they appear as one comparison group with no extra setup.
For products where automatic matching is not possible, you can group monitors manually using tags or the comparison panel's search feature.
Side-by-Side Price Comparison
On any monitor's detail page, the Matched Pages Panel shows every retailer carrying the same product. Each retailer's current price is displayed side by side, with the cheapest highlighted in green and the most expensive in red.
No more switching between tabs. One glance tells you where the best deal is right now.
Price Alerts Across Retailers
This is where it gets powerful. Instead of checking prices yourself, let PageCrawl tell you when something changes:
Cheapest in group: Get notified the moment a specific retailer drops to the lowest price. For shoppers, this means knowing instantly when your preferred store has the best deal. For businesses, it flags when a competitor undercuts you.
Most expensive in group: Get notified when a retailer's price becomes the highest in the group. Useful for spotting when competitors raise prices (an opportunity to capture sales) or when your own pricing needs adjustment.
Price spread exceeds %: Get notified when the gap between the cheapest and most expensive retailer exceeds a percentage you set. A 5% spread on a $50 item is normal. A 30% spread might mean a pricing error, a flash sale, or an arbitrage opportunity.
Alerts work with email, Slack, Discord, Teams, Telegram, and webhooks. They are state-aware, meaning you get notified once when the condition becomes true, not repeatedly on every check.
Cross-Retailer Export
For anyone tracking many products, the comparison export creates a spreadsheet with one row per product and one column per retailer. At a glance, you can see which store is cheapest for every product you track, spot patterns in competitor pricing, or share the data with your team.
Who Uses This
Shoppers Tracking Deals
You have a wishlist of products you want to buy, but only at the right price. Add each product from 3-4 retailers, set a "Cheapest in group" alert, and forget about it. When the price drops at any store, you get a notification.
Works well for electronics, appliances, furniture, or anything expensive enough that the price difference matters. Check daily, hourly, or every few minutes depending on how time-sensitive the deal is.
E-commerce and Retail Teams
Track your top products across competitor stores. Comparison alerts tell you immediately when a competitor undercuts you on high-margin items. The export gives your pricing team a weekly snapshot of where you stand across the market.
Brands Monitoring Retailer Pricing
Brands with MAP (Minimum Advertised Price) agreements can monitor authorized retailers for compliance. Group each product and set a "Price spread exceeds %" alert. If one retailer drops below MAP while others hold, the alert fires.
Resellers and Arbitrage
Compare the same product across marketplaces (Amazon, eBay, Walmart Marketplace, specialty stores). The spread alert tells you when there is a profitable gap between where you can buy and where you can sell.
Procurement Teams
Track prices across multiple suppliers for items your company purchases regularly. The comparison export shows which supplier has the best price for each item, updated automatically.
Getting Started
Product comparison is available as a team add-on. Once enabled, product matching happens automatically for all monitors in your workspace.
- Add product pages from each retailer using "Price detect" mode
- Wait for the first check to run (usually 1-3 minutes)
- View the Matched Pages Panel on any monitor to see the comparison group
- Set comparison alerts for the conditions you care about
- Export comparison data from the bulk edit menu for spreadsheet analysis
For products where automatic matching is not possible, group monitors manually using the comparison panel or by applying matching tags.