eCommerce, or electronic commerce, refers to the buying and selling of goods and services over the internet. It enables businesses to reach customers worldwide, operate 24/7, and offer convenient, fast, and secure shopping experiences. Through platforms like Shopify, WooCommerce, Amazon, and custom online stores, eCommerce covers everything from product display and digital marketing to secure payment processing and order fulfillment. With the growing shift toward digital retail, eCommerce plays a vital role in modern business success, offering scalability, data-driven insights, and customer engagement like never before.