1. Count the look-alikes
How many results show essentially the same product — same shape, same photos, same features, different brand names? When most of page one could have come off the same production line, buyers have no reason to choose a new seller except price.
2. Look at the review wall
Note the review counts on the top results. If every one of them carries thousands of reviews, you’ll be asking shoppers to pick a listing with none. The encouraging sign is the opposite: a few listings with modest review counts that still rank on page one, which shows newer sellers can get seen.
3. Check for price compression
Are most prices bunched tightly together, at the low end of what the product could sell for? A narrow, low price band means sellers are competing on price, and every fee, shipping cost and return comes straight out of a thin margin. Compare prices for similar products across marketplaces to see where the band really sits.
4. Count the sponsored slots
Note how many results on page one are marked “Sponsored”. When a large share of the page is paid placement, sellers are buying visibility because ranking organically is hard — and you would have to buy it too, from day one.
5. Count sellers on the same listing
Open the top listings and check how many sellers offer that exact product. Several sellers rotating on one listing usually means a commodity: whoever is cheapest wins the sale, which is a race new sellers rarely win.
6. Check where demand is heading
Saturation plus falling demand is the worst combination: the same number of sellers fighting over fewer buyers. Look at the demand trend over a year or more, and separate a seasonal dip from a real decline — our guide on how to tell if a product trend is dying walks through it.
7. Look for room to be different
Read the one- to three-star reviews of the top sellers. Repeated complaints — sizing, materials, packaging, missing instructions — are your opening. If you can’t name one concrete thing you’d do better that buyers actually complain about, you’d be entering on price alone.