Keepa is a tool that tracks Amazon product history: price, sales rank, number of sellers and Buy Box price over time. For wholesale, it answers three questions before you buy: does this product sell steadily, how many sellers share it, and is the price stable?
Quick answer: Open the product in Keepa, set the chart to 90 days or more, and check three lines: sales rank (does it drop often?), offer count (are sellers piling in?) and Buy Box price (is it stable?). If all three look healthy, the product moves on to your fee and ROI check.
Getting Started With Keepa
Keepa works as a website and as a browser extension that adds a chart under each Amazon product page. Basic price history is free; the sales rank, offer count and detailed statistics most wholesale sellers rely on need a paid subscription. Check Keepa’s site for current plans.
1. Sales Rank History
The sales rank line shows the product’s Best Sellers Rank over time.
- Frequent drops in the line usually mean sales. More drops means more sales.
- A flat line with few drops means slow sales.
- A sudden recent improvement may be a short spike, not lasting demand.
Keepa’s statistics panel also counts sales rank drops over 30, 90 and 180 days, which is a quick way to compare products. Learn what a good BSR for wholesale looks like for different categories.
2. Offer Count
The offer count line shows how many sellers list the product, often split into new FBA and FBM offers.
- Steady offer count: competition is stable.
- Rising offer count: more sellers are joining, which usually pushes the price down.
- Falling offer count: sellers are running out of stock; check why before you buy.
Read how many FBA sellers is too many to judge what the number means for your share of sales.
3. Buy Box Price and Amazon
The Buy Box line shows the price that wins most sales. Look for:
- A stable price you can plan around.
- Price drops that line up with new sellers joining.
- Amazon as a seller. Keepa shows when Amazon itself has an offer. Amazon on the listing often makes it harder to win the Buy Box.
A Quick Keepa Routine for Each Product
- Set the range to 90 days, then check one year for seasonality.
- Count sales rank drops.
- Check the offer count trend.
- Note the average Buy Box price and whether Amazon sells it.
- Use that average price, not today’s price, in your fee and ROI math.
For the full research process, see how to find profitable wholesale products.
Frequently Asked Questions
Is Keepa worth paying for?
For most wholesale sellers, yes. Sales rank and offer history are hard to get any other way, and they help you avoid bad buys.
What range should I look at?
Start with 90 days for current demand, then check a full year to spot seasonal swings.
Can Keepa tell me exact sales?
No. It shows signals such as rank drops. Treat any sales figure as an estimate.