SEO Term Definition
Progressive Web App (PWA)
A web application that uses modern browser features to deliver app-like experiences, improving mobile SEO performance.
Reviewed by Alexander Yarovenko · Updated: 2026-07-03
What Is a Progressive Web App?
A Progressive Web App (PWA) is a web application that leverages modern browser capabilities — service workers, Web App Manifest, HTTPS — to provide fast, reliable, app-like experiences. PWAs can be installed on home screens and work offline.
SEO Benefits of PWAs
- Speed: Service worker caching dramatically reduces load time for repeat visitors
- Mobile experience: App-like navigation reduces bounce rates
- HTTPS: PWAs require secure connections, a positive ranking signal
- Core Web Vitals: PWAs typically score well on LCP, FID/INP, and CLS
SEO Considerations
- Ensure content is served as HTML, not solely via JavaScript, for crawlability
- Test rendering in Google Search Console's URL Inspection tool
- Canonical URLs must be consistent between app-shell and server-side views
- PWA install banners and interstitials can trigger mobile usability issues
Implementation Checklist
- Serve over HTTPS
- Add a Web App Manifest
- Register a service worker
- Implement offline fallback
- Pass Lighthouse PWA audit