Analyze any e-commerce competitor
Type a store's domain for a short report from the SellWinners index: its estimated monthly visits and growth, live ads, catalog size, Trustpilot rating, tech stack and best sellers.
E-commerce competitor analysis
How it works
Type the store's domain and pass the short security check.
The tool reads the store's profile in the SellWinners index: its traffic, ads, catalog and rating, and the apps and theme it runs.
You get the report with its top best sellers. Sign up free for the store's full overview in the web app.
Each visitor has a few free uses of each tool a day, and every lookup passes a short security check. A free account opens the stores, their ads and their best sellers in the web app.
Common questions
What does the competitor report show?
The store's estimated monthly visits and their growth over 30 days, its live Meta ads, the number of products it sells, its Trustpilot rating, the Shopify apps and theme it runs and its top best sellers.
How are the visits estimated?
They are estimates of the store's visits over the last month in the SellWinners index, with the change against the month before. Use them to compare stores and see which way they are going, not as exact traffic.
Why does the rating say not measured yet?
The SellWinners index has not measured that store's Trustpilot page yet. It does not mean the store has no page there.
Is the competitor analysis free?
Yes, with no account: each visitor has a few reports a day. Sign up free to search stores and open each one's full overview in the web app.
More free tools
Competitor ads finder
Type a store's domain and see its live ads on Meta, TikTok and Google, with its latest creatives.
Winning product finder
Pick a market and a niche and see today's winning products, with their price and their store.
Ad hook generator
Type your product and get short opening lines for your next Meta or TikTok ad.
Shopify apps detector
Type a store's domain and see the Shopify apps it runs, with their category.
Shopify theme detector
Type a store's domain and see which Shopify theme it runs, or whether it is headless.
Shopify product exporter
Download a Shopify store's public products as an Excel or CSV file.
Profit calculators
Break-even ROAS, ROI, lifetime value, profit and margin, worked out in your browser.
See what's winning in your market
Search Shopify stores and Meta ads for free. The Free plan includes the web app and the MCP server (150 credits a month), without the API. Paid plans add every dataset and the API, with more credits.