PWA Migration SEO
PWA Migration SEO
A migration to a Progressive Web App changes the delivery layer that search engines depend on. The cheapest time to protect organic visibility is before launch — while the build is still in staging and changes are still inexpensive.
Four phases of a migration
Involvement across all four is what keeps a launch from becoming a recovery project.
Planning
Establish what currently earns organic visibility, which templates and URLs matter, and what the new architecture must preserve to keep them.
Pre-launch validation
Test the staging build the way a crawler would: rendered output per template, route resolution, status codes, canonicals, metadata and redirect mapping.
Launch
Watch the switch closely — redirects resolving correctly, no unintended noindex, no blocked resources, no app-shell responses served to crawlers.
Post-launch verification
Confirm recrawl and reindexing of key templates, catch regressions early, and resolve anything the staging environment couldn't reveal.
What we validate before launch
- URLs that change without a complete redirect map
- Content that no longer exists in the rendered output
- Client-side routes that return 200 for missing pages
- Internal links replaced by non-crawlable interactions
- Canonical tags pointing to the app shell or the homepage
- Metadata and structured data lost in the new component layer
- Service worker caching serving stale or partial responses
- Staging environments left indexable, or production left noindexed
Migrations fail quietly
A PWA migration rarely breaks in a way that's visible on launch day. The site looks correct, the team celebrates, and the consequences appear weeks later as falling coverage and declining organic sessions — by which point the release that caused it is several deploys back.
Pre-launch validation replaces that lag with a checklist you can act on while the build is still in staging. If your migration has already launched, remediation is the right starting point instead.
Before You Launch
Get eyes on the migration
Tell us your target launch window and the stack you're moving to.
Migrating to a PWA?
Have the build reviewed before launch, while fixing things is still cheap.