Track Amazon Product Ratings

Enter an Amazon product URL or ASIN to start tracking its star rating and review count over time.

Track Amazon Product Ratings Over Time

See how any Amazon product’s star rating and review count have changed – week by week, month by month. Enter a product URL or ASIN and get an instant performance chart showing the full rating history at a glance.
Useful for spotting products on the rise, catching quality drops before you buy, and comparing how sellers maintain their listings over time. No account needed – just paste the link and go.

An ASIN stands for Amazon Standard Identification Number. It is a unique block of 10 letters and/or numbers that identifies items specifically within the Amazon ecosystem.

Think of it as Amazon’s internal version of a barcode or social security number for products.

How ASINs Work

  • Unique to the Marketplace: Every product sold on Amazon is assigned an ASIN. Even if multiple sellers are offering the same item, they all list it under that single, shared ASIN to keep the catalog organized.
  • Standard vs. Books: For most products, the ASIN is a random 10-character alphanumeric string. However, for books, the ASIN is usually the same as the 10-digit ISBN (International Standard Book Number).
  • Global Variation: ASINs are specific to the locale. A pair of headphones might have one ASIN on Amazon.com (US) and a completely different ASIN on Amazon.co.uk (UK).

Where to Find an ASIN

If you are looking for a specific product’s ID, you can find it in two main places:

  1. The Product URL: The easiest way is to look at your browser’s address bar. The ASIN typically appears after /dp/ or /gp/product/.Example: amazon.com/product-name/dp/**B00X4WHP5E**/
  2. Product Information Section: If you scroll down to the “Product Details” or “Additional Information” table on a listing page, the ASIN will be listed alongside the weight and dimensions.

Why It Matters

  • Inventory Management: For brands and sellers, the ASIN is the primary way to track inventory, manage advertising campaigns, and sync data with external e-commerce tools.
  • Search Accuracy: If you are trying to find a very specific version of a product (like a specific color or model), searching by the ASIN ensures you don’t end up with a similar but incorrect item.
  • Merging Listings: If two “duplicate” listings exist for the exact same product, Amazon will often merge them into one ASIN to clean up the customer experience.