Deploying a React application using Amazon S3 and Amazon CloudFront is one of the most efficient ways to host modern web applications.

Amazon S3 can host static website files such as HTML, CSS, JavaScript, and images. After building the React application using the production build command, developers upload the generated files into an S3 bucket configured for static website hosting.

CloudFront acts as a Content Delivery Network (CDN) that distributes website content across global edge locations. This improves loading speed, reduces latency, and enhances user experience worldwide.

To make the application production-ready, developers often integrate custom domains using Route 53 and secure the application with SSL certificates from AWS Certificate Manager. The combination of S3 and CloudFront provides scalability, reliability, low cost, and high performance.

This deployment architecture is commonly used by startups, portfolios, SaaS products, and enterprise web applications.