Free Amazon Seller Lookup
Paste a seller ID or storefront URL and see the seller's feedback, listing count, FBA use, and the brands and categories they sell.
Track every listing this seller adds
Seller Spy checks this storefront every day and shows the products and brands the seller adds or removes, and the brands they carry that you don't.
Perfect for: new brands to source · competitors on your listings · brands they carry that you don't
Competing with this seller on a listing?
Repricer rules can react when a specific seller holds the Buy Box, and keep your price inside your minimum, maximum and cost-based floor.
How to Find an Amazon Seller ID
Every seller profile and storefront URL contains the seller ID. Three steps:
- Step 1
Open the seller from a listing
On any product page, click the seller name next to Sold by, or pick a seller under Other sellers on Amazon.
- Step 2
Copy the ID from the URL
The seller profile URL ends in seller= plus the ID, for example amazon.com/sp?seller=A1B2C3D4E5F6G7. A storefront URL carries it after me=.
- Step 3
Paste it into the lookup
Paste the ID or the whole URL. When you paste a URL, the tool reads the marketplace from the domain.
Looking for your own ID? In Seller Central, open Settings > Account Info > Merchant Token.
What the Seller Lookup Shows
One lookup gives you the seller summary that Amazon spreads across the profile page and the storefront.
Feedback and Ratings
Positive feedback for the last 30 days, 12 months and lifetime, plus how many ratings the seller got in the last 30 days, a proxy for sales volume.
Listing Count
How many ASINs the seller has on their storefront right now, and how long the seller has been on record.
FBA or Merchant Fulfilled
Whether the seller uses Fulfillment by Amazon, whether they ship from China, and their business address.
Buy Box Win Rate
How often the seller wins the Buy Box on new offers, and how many sellers compete for it on their listings on average.
Competing Sellers
The five sellers that most often offer the same products. Look any of them up with one click.
Top Brands and Categories
The brands and categories with the most listings, their average 30-day BSR, and how often Amazon sells the same ASINs.
What Resellers Use It For
Find Brands to Source
A reseller who carries 400 listings of one brand has an account with that brand or its distributor. The top-brands table is a list of wholesale accounts worth opening.
Size Up a Competitor on a Listing
Before you join a listing, check who you share it with: their feedback, their size, and whether they use FBA.
Avoid Listings Where Amazon Sells
The "Amazon also sells" column shows how much of a seller's catalog overlaps with Amazon as a seller, by brand and by category.
Frequently Asked Questions
Visit Help CenterWhat is an Amazon seller ID?
How do I look up a seller on Amazon?
How do I find my own Amazon seller ID?
Is the Amazon Seller Lookup free?
Which Amazon marketplaces are supported?
Where does the seller data come from?
Can I see every product a seller sells?
Track Competitors Every Day with Seller Spy
Add a seller once. Seller Spy checks their storefront daily and shows every product and brand they add or remove.
14-day risk-free trial. Cancel anytime.
Not sure which plan fits your sourcing workflow? Chat with our team — we're happy to help.