This document summarizes the findings of a benchmark study conducted by dotCommerce that analyzed the online shopping experiences of 20 major UK retailers. The study evaluated the retailers across seven key areas of their ecommerce sites, including website content, design, product search/pages, marketing, checkout/funnels, and after-sale support. Each retailer was given an overall percentage score indicating how effective their site was based on 130 best practices. The report aims to provide guidance to help both large and small businesses improve their online sales.