The Amazon D-Score – Reliable Product Ratings is a Chrome extension that provides additional ratings for every product listing on Amazon. Developed by Kevin Moody, this free add-on falls under the category of Browsers and belongs to the subcategory of Add-ons & Tools.

With the D-Score, users can obtain a more reliable product rating for each item they come across on Amazon's search results page. This allows them to make informed decisions when comparing different products. The D-Score is calculated by subtracting the percentage of 1-star ratings from the percentage of 5-star ratings, resulting in a score between -100 and 100. This score serves as a highly accurate predictor of product quality.

Products with D-Scores above 80 are considered excellent and can be confidently purchased. To make the D-Score even more user-friendly, the score is converted into a visual representation using purple dots ranging from 0 to 5, enabling users to compare products at a glance.