An E-commerce website is an online platform that allows businesses to sell products or services directly to consumers over the internet. It typically features a user-friendly interface, product listings, a shopping cart, and secure payment processing options. Key elements include categories for easy navigation, search functionalities, customer reviews, and an account management system for tracking orders and managing profiles. Integrating features like mobile responsiveness, SEO optimization, and social media connectivity can enhance the shopping experience and help drive traffic to the site.