The Product Ratings programme allows you to display aggregated reviews for your products to customers shopping on Google. Product ratings are shown in ads and free product listings, appearing as one- to five-star ratings that also display the total number of reviews for the product.
These ratings and reviews help with product research and purchase decisions, driving more qualified customers to your product pages.
Star ratings represent the aggregated rating for the product, compiled from multiple sources including merchants, review aggregators, review sites and Google users.
How to participate
Product Ratings requires that you have a minimum of 50 reviews across all of your products.
If you work with a supported reviews aggregator, you can ask them to submit your product reviews to Google for you. See the list of supported reviews aggregators
If you don't work with a supported reviews aggregator or would prefer to submit your reviews yourself, you can sign up for Product Ratings and subsequently submit your product reviews periodically through Merchant Center. For this option, you should have a Merchant Center account associated with your business website.
If you don't currently collect reviews for the products that you sell, you can begin doing so for free by signing up for Google Customer Reviews.
Bear in mind
Ratings and reviews are matched to products based on a number of factors, the strongest being globally unique product identifiers such as GTINs (Global Trade Item Numbers). Without GTIN data, Google will attempt to match a review through other information such as SKU (Stock Keeping Unit), Brand + MPN (Manufacturer Part Number) pairs and product URLs. However, these identifiers generally do not offer as good a match as GTINs. Without GTINs, Google may not be able to match all of your reviews to products. Learn more about unique product identifiers
Reviews and star ratings may not always be shown. Google will display star ratings when the system determines that the information is accurate and relevant for customers' needs.
Product Ratings can be used in countries where Shopping ads and free product listings are available. To be eligible to display star ratings on ads and listings, you must adhere to these Product Ratings policies.