Per-state Buy Box ownership for Amazon US listings
Amazon says you own the Buy Box, but not how much of it
→ Tells you who owns the Buy Box in each US state
→ Shows ownership maps, leaderboards, and more
→ Compares the winning price across states
→ Scans in the background while you get work done
→ Reports fulfillment method, delivery time, and more
How it works to create a Buy Box map of the country
One ASIN, fifty states, in about sixty seconds
Open the tab and choose coverage
Open any Amazon US item in your catalog and scan all 50 states plus DC in one click. If you'd rather run something targeted, customize scan lets you click states directly on an interactive map or add preset regions.
1
Start a live scan, state by state
Flashpricer checks the listing against a delivery ZIP in each selected state and records the Buy Box winner. The map fills in state by state as results land. It refreshes roughly every ten seconds and runs in the background.
2
View your key metrics and Buy Box map
View the lowest, highest, and median winning price across the country, alongside a Concentration Score so you know how contested the listing is. A leaderboard ranks every seller with their share of states, their average winning price, and an FBA or FBM badge, color-matched to a US ownership map.
3
Dive deeper into any individual state
Expand any state and you get the detail behind it: the delivery ZIP the Buy Box was checked against, where the winning offer ships from, whether it's FBA or FBM, how many offers were competing in that state, and a direct link to the winning seller on Amazon.
4
Why "you have the Buy Box" can be an expensive half-truth
Owning the Buy Box on Amazon is no longer a 'yes or no'
Stop celebrating partial wins
Amazon will report that you're in the Buy Box whether you've won 3 states or 43. Find out which of your "healthy" listings are actually collecting a fraction of the sales you assumed they were.
Know what a price move buys you
With a scan before and after, you can see how many states flipped, which sellers gave them up, and whether it was worth it. Margin decisions start to become more actual science than guesswork.
Win states that actually carry volume
Half the map is not half the money. California, Texas, New York, New Jersey, and Florida move far more units than Alaska and Hawaii, and a scan that looks like a majority can still be missing states that matter.
See if price is actually what's beating you
Once you see delivery times and seller rating beside each result, you can tell whether you're facing a pricing problem or whether you should focus on reviews or distribution of your FBA stock.
A live scan on a real client listing, recorded start to finish
Fifty cents moved a third of the country.
On an ASIN moving roughly 1000 units a month, Amazon's API showed our client as the Buy Box owner. Our map told a different story. At $180 our client held just 20% of states. A competitor priced at $181.37 was holding 69% because they were delivering in two days faster. We dropped the price fifty cents, to $179.50, and rescanned. The client came back at 58%. A third of the country changed hands over half a dollar, on a listing where the competitor was still delivering faster. Thanks to the map, our client gained roughly 38 points of sales share on an ASIN doing a thousand units a month.
Pay one credit per state, and only for the states you want
Scan the whole country for less than 26 cents
Pack | Price | Credits | Full Scans |
|---|---|---|---|
Starter | $7.00 | 500 credits | ~9 |
Growth | $25.00 | 2,500 credits | ~49 |
Pro | $70.00 | 10,000 credits | ~196 |
Scale | $250.00 | 50,000 credits | ~980 |
All your Buy Box map questions, answered
Isn't the Buy Box the same everywhere?
No, and that's the whole reason this feature exists. Amazon awards the Buy Box based partly on how fast the offer can reach the buyer, and delivery speed depends on where your inventory sits relative to that buyer. A seller with stock on the East Coast can win the Northeast and lose the Mountain West on the same listing at the same price. Amazon's API flattens all of that into a single national answer, which is why two sellers can both be told they "own the Buy Box" on the same ASIN.
Which listings can I scan?
Amazon US listings with an ASIN. Buy Box by State appears as a tab in the item's detail drawer on the Products page for any eligible item in your catalog. It isn't available for Walmart — Flashpricer already corrects Walmart competitive data separately, and this feature was built to close the same gap on the Amazon side.
How long does a scan take?
About a minute for the full 51 states. It runs in the background, so you can close the drawer and keep working — the results view appears when it's done. A live progress panel shows states completed, credits used, and estimated time remaining while it runs.
What does a scan cost?
One credit per state, so a full 51-state sweep is 51 credits and a targeted five-state check is five. You're only charged for states that return a result — failures are free. Credit packs start at $7 for 500 credits, which is roughly nine full scans, and larger packs bring the per-scan cost down to about $0.25. Purchased credits never expire. Unlimited plans don't spend credits on scans at all.
Is the data live?
Yes. Each scan is an on-demand check run at the moment you request it, not a cached or modeled result. That's what makes the before-and-after test work — you can push a price change, rescan, and see the effect on ownership right away.
Do I have to scan all 51 states every time?
No, and for most day-to-day use you shouldn't. Customize scan lets you pick exactly the states you want by clicking the map, adding a region preset, or searching by name. If your volume concentrates in a handful of states, scanning just those is cheaper and answers the question you actually have.
What does "No Buy Box" mean on a state?
It means Amazon returned no Buy Box winner for that state, which is a valid outcome rather than an error. It's different from a failed state, which means the check couldn't be completed — failures cost nothing and can be re-scanned on their own.
What are Dominated, Split, and Fragmented?
They're the Concentration Score on how contested a listing is. Dominated means one seller is taking most of the states. Split means a few sellers are sharing the country. Fragmented means many different sellers are winning in different places. It's a fast way to tell whether you're up against one serious competitor or a crowded listing, which usually calls for a different pricing approach.
Does map share translate into sales share?
Closely enough to plan around, though not exactly. If you know an ASIN sells about a thousand units a month and you hold half the map for most of the month, expecting somewhere near half the revenue on that ASIN is a reasonable working estimate. It isn't precise, because high-volume states pull more than their share of the map — which is exactly why the map shows you which states you hold rather than just a percentage.
Does this work with repricing strategies?
It helps you build a strategy. Buy Box by State is a diagnostic — it tells you what you actually own and what a price move is worth, and it doesn't change prices on its own. What you learn from a scan is what informs the strategy you set in the repricing engine, and you can rescan afterward to confirm the automation is holding the ground you wanted.