Progressive Web Apps combine the best of web and native apps, delivering fast, reliable, and engaging experiences to users on any device.
What is a PWA?
A Progressive Web App is a web application that uses modern web technologies to deliver app-like experiences. PWAs are reliable, fast, and engaging — they work offline, load instantly, and can be installed on the home screen.
Core PWA Features
The three pillars of a PWA are: a Web App Manifest (for installability), a Service Worker (for offline support and caching), and HTTPS (for security). Together these enable the "add to home screen" prompt and offline functionality.
Service Workers
Service workers act as a proxy between your app and the network. They intercept network requests and can serve cached responses when offline, dramatically improving load times and reliability.
Performance Optimization
PWAs should score high on Core Web Vitals. Use lazy loading, code splitting, and efficient caching strategies to ensure your PWA loads in under 3 seconds even on slow connections.
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