Product reviews (SEO)
Product reviews are buyer-generated content that enriches product pages, improves conversion rates, and enables star ratings in Google results through Review or AggregateRating markup. Their authenticity and diversity directly affect both click-through rates and how Google evaluates page quality.
In practice
Google has distinguished genuine reviews from fake ones since the Product Reviews update (2021-2023). The signals it evaluates include diversity of phrasing, mentions of specific use cases, and publication date. A site displaying 80 authentic text reviews with AggregateRating schema earns an average 15% CTR lift compared to the same page without stars in the SERP.