New format
PWA: what Progressive Web Apps are and when you need them
A PWA (Progressive Web App) is a website that behaves closer to an app: you can add it to the home screen, work partly offline, and send notifications where the browser and OS allow.
Below: what a PWA is made of, why business needs it, and site requirements. It doesn’t replace a native store app and isn’t a button to lift SEO — start with a fast responsive site on HTTPS.
What a PWA can do
A home-screen icon, launch almost without the browser chrome, static and partial data cache via Service Worker, push notifications where the platform allows.
Large-web examples (maps, media, retail) show a “site = habit” scenario — not a mandatory stack for every business-card site.
Strengths:
- one codebase across devices via the browser
- faster path to install than native development
- less space than a heavy APK
- server updates without store moderation
Pros and cons for business
For a store and a service with repeat visits, a PWA can cut friction: faster return entry, offline viewing of cached sections, reminders with consent.
Downsides: feature support depends on browser and iOS/Android; push and background jobs are limited; Service Worker build and upkeep is separate engineering. “Install a plugin and forget” on a complex store is risky.
When to look at PWA:
- high return traffic
- you need a light shortcut without a native app
- the site is already fast and on HTTPS
- you have capacity to maintain cache and updates
Basic site requirements
HTTPS is mandatory. You need responsive or a solid mobile version. The manifest describes name, icons, and start URL. The Service Worker registers and carefully caches resources without breaking cart and account areas.
Every important page needs a stable URL. Test install and offline on real devices — not only in Lighthouse.
Checklist before rollout:
- SSL works on all URLs
- mobile UX is acceptable without PWA
- manifest and icons are ready
- cache strategy is agreed with engineering
- there’s a plan to update the SW without sticking on an old version
FAQ
Is a PWA installed from the App Store / Google Play?
Usually no: the user adds the site from the browser to the home screen. Store publishing scenarios exist, but classic PWA is web + installable.
Does a PWA raise search rankings?
There’s no direct “PWA bonus.” Indirectly HTTPS, speed, and solid mobile UX help — and you can improve those without a full PWA.
What’s technically required?
HTTPS, a web manifest (name, icons, start_url), and a Service Worker for cache/offline. Without that, Install won’t work as intended.
Does offline mode work fully?
Only what you cached and designed for. Cart and order without a network need separate design — not PWA checkbox magic.
Do all sites need a PWA?
No. It fits repeat visits, catalogs, app-like services. A one-off service landing often only needs a fast mobile layout.
Want an “app shortcut” — and expect PWA alone to lift rankings?
We’ll ship HTTPS, manifest, and Service Worker where repeat visits pay off — after Core Web Vitals, not instead of them.
Discuss the task
