Know if an Amazon listing is beatable before you wire a factory.

FortressScore reads the listing you're looking at, prices it against real Alibaba suppliers, and turns its critical reviews into the specs you should demand and the questions you should ask. One panel, on the Amazon page, in about thirty seconds.

Add to Chrome, free See how it works

Free: 5 Edge Reports a day, unlimited margin math and comps. No account needed.

$26.01

net per unit

53.8%

margin

559%

ROI on landed

Alibaba unit (image match, 31 of 40 same type)	$3.22
Freight, duty, placement, prep	$1.43
Landed cost	$4.65
Referral, FBA fee, PPC, returns	-$17.69
Breakeven price	$12.22
Cash for MOQ (100)	$465

Fortress score

Young listing, thin review base, one dominant unfixed complaint. Beatable on the wedge below.

Weak spot: earhook loosens after two weeks (41% of critical reviews)Demand: over-molded TPU hook, 0.9 mm core wire, 5,000-cycle flex test. Ask the factory: "What is the hook's core material and flex-cycle rating?"

Strong spot: battery life (58% praise)Must match: 40 mAh per bud, 400 mAh case, 8 h playback claimed.

Three things no other extension shows you

Margin calculators exist. Alibaba lookups exist. FortressScore is the layer that tells you what to do with them.

Landed margin against real comps

The product image is matched on Alibaba, the listings are scored for whether they're actually the same product, and the median price flows into a full landed-cost model: freight, duty, FBA fees, referral, PPC. Every number is editable.

Edge Report from critical reviews

Up to 100 critical reviews become weak spots and strong spots: each complaint turned into a concrete spec to demand, one question that separates a factory from a trading company, and what a third-party inspector should test.

Fortress score

A single 0 to 100 read on how hard the listing is to displace, from its review base, age, and whether its biggest complaint has ever been fixed. Attack the 30s. Skip the 80s.

How it works

Nothing to set up. Open a listing and press the green button.

Open any Amazon listingAn "Analyze in FortressScore" button appears under the title.

Comps come in automaticallyThe panel reads price, weight, dims, and BSR, then searches Alibaba by image in a background tab.

The Edge Report builds itselfCritical reviews are pulled through your own Amazon session and analyzed. Copy any factory question with one click.

Save the ones worth chasingProducts, suppliers, quotes, sample status, notes. The list you actually come back to.

Pricing

The margin math and Alibaba comps are free without limit. The Edge Report costs us money per run, so it's metered.

Free

Unlimited margin math and Alibaba comps
5 Edge Reports a day
Saved products and suppliers

Add to Chrome

Pro

$15/month

100 Edge Reports a day
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Coming at launch

Questions

Does it work for branded products?

It reads any listing, but the comps and the Edge Report are built for generic, private-label products. On a Dove or a Logitech listing you'll see the generic equivalents on Alibaba, which is often what you want, but you can't source the brand itself.

Where do the Alibaba prices come from?

From Alibaba, through your own browser, the same way you'd search there yourself. Nothing is scraped from a server. Alibaba may occasionally show a slider check; slide it and the results load.

Is the FBA fee exact?

It's an estimate from Amazon's published size tiers. Override it with the number from Seller Central's revenue calculator; the whole table recomputes.

What leaves my browser?

Only the text of the critical reviews, sent to our server to build the Edge Report. No account, no personal data, no browsing history. Details in the privacy policy.

Who makes this?

A solo Amazon seller in New Jersey who got tired of pasting Alibaba quotes into spreadsheets. Support: fortressscore25@gmail.com.