Catch the moment an unauthorized seller takes your Amazon Buy Box.
Amazon brand owners and FBA sellers don't need another price-history chart. You need an alert the moment a 3P seller breaks MAP, the moment a competitor ASIN drops a sub price, the moment a retailer flips before Amazon catches up. DiffScout watches the listing the way you would — and emails you.
Amazon's Buy Box rotates between sellers every few hours. Brand owners need to see the moment an unauthorized 3P seller breaks MAP and takes the Buy Box, because a Brand Registry violation report filed in the same hour gets the seller suspended within days; one filed a week late costs sales every day in between.
- Prime Day (July + October)
- Black Friday/Cyber Monday
- Quarterly retailer-clearance windows
- Continuous: unauthorized seller activity
An Amazon brand director at an $18M D2C protein brand sees their hero ASIN's Buy Box rotate to an unauthorized seller at $39, $9 below MAP, at 11:14am Wednesday. DiffScout pings the team Slack. By 11:40 they've filed the violation through Brand Registry. The seller is suspended by Friday, before the next Prime Day push.
Composite scenario — based on patterns we see daily across the amazon brand owners + fba sellers cohort.
Sixty seconds from URL paste to first alert in your inbox.
- 01
Paste a competitor URL
Any product page, any pricing page, any storefront. The waterfall extractor reads structured data first and falls through to AI vision when sites block scrapers.
- 02
Pick the SKU you actually compete with
Five-color × seven-size variants get parsed automatically. You track the one that matters — usually the lowest list-price option in the style.
- 03
Get an email within the hour
Daily on Free, hourly on Pro, every 30 minutes on Business. The alert includes old price, new price, percent change, and a screenshot.
Questions buyers in this category ask.
- Is this Keepa or CamelCamelCamel for sellers?
- Different shape. Keepa and CCC are read-only Amazon price history charts; you check them when you remember to. DiffScout sends an alert email or Slack message the moment a price moves on the listings you watch — no chart-checking required. We also work outside Amazon: track the same SKU on brand.com, Walmart, Target, Best Buy in one view, so you see which retailer breaks first when a sale starts.
- Can I track Amazon Buy Box rotation in near-real-time?
- Yes. The Pro plan checks hourly, the Business plan every 30 minutes. Track each ASIN you compete with, each ASIN you sell, and every authorized reseller listing — when the Buy Box flips to a new seller at a new price, you see it within the hour.
- How do I detect MAP violations from unauthorized 3P sellers?
- Set up a mission per ASIN at the price floor you've set with authorized partners. The scanner reads the live Buy Box price each check; when it crosses below your floor you get an immediate alert with the seller name and timestamp. Ship the screenshot to Amazon Brand Registry the same day.
- Does it work alongside our existing Amazon repricer?
- Yes, DiffScout doesn't reprice anything. We're the detection layer; the repricer (Sellerboard, Aura, RepricerExpress, etc) is the response layer. DiffScout sees the Buy Box flip happen, alerts your team, and the repricer reacts. Two different jobs, both useful.
- Can I track competitor brands' Amazon listings, not just my own?
- Yes. Most brand owners track 5-10 competitor ASINs in addition to their own. The scanner doesn't require seller account access, it reads the public listing page the same way a customer would, including Buy Box price, Subscribe-and-Save price, and any active coupon.
Stop reloading your competitor's pricing page.
14-day Pro trial — full Pro limits, no credit card. Auto-drops to Free; you'll never see a charge you didn't approve.
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