What is a progressive web app (PWA) and how do I host one?

A Progressive Web App (PWA) is a website that behaves like a native mobile app — installable to home screen, works offline, receives push notifications, and runs full-screen. PWAs combine the best of web (no app store, immediate updates, no download) and native apps (offline access, push notifications, device integration). Key PWA requirements: HTTPS (required for service workers), a Service Worker (JavaScript that runs in background, enables offline caching), and a Web App Manifest (JSON file describing the app). Create a basic service worker: self.addEventListener("install", e => e.waitUntil(caches.open("v1").then(c => c.addAll(["/", "/index.html", "/style.css"])))); For React/Next.js: use next-pwa plugin. Test PWA score with Lighthouse in Chrome DevTools. Host on any Connect Quest plan — PWAs are just websites with extra capabilities. The offline capability is especially valuable for Indian users with variable connectivity. Set up at connectquest.co.in.