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Price history, Buy Box, sales rank, profit & cross-marketplace data on Amazon & Walmart product pages. By knowite.com. knowite.com brings real product-research data right onto Amazon and Walmart product pages — so you can decide what's worth sourcing without leaving the page. On any Amazon or Walmart product, the knowite panel shows: • Price & sales-rank history charts — Buy Box, Amazon, 3rd-party, Used, rank, rating, and offer counts • Current Buy Box, sales rank, estimated monthly sales, rating & review velocity • FBA vs FBM seller counts and the live offer list • Category, fees, dimensions, identifiers and more in a full Data tab • Cross-marketplace check — see the same product on the other marketplace (Walmart ↔ Amazon) with an estimated net • eBay sold-comps link for real resale value • Track product — set a price-drop alert and get emailed when it hits your target Sign in with your knowite.com account to activate the panel. Free and paid plans available. knowite.com is an independent tool and is not affiliated with, endorsed by, or sponsored by Amazon or Walmart.
May 30, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.