SEO impact — server-rendered Hyvä vs SSR-React PWA Studio?

Hyvä is server-rendered. Crawlers receive fully-formed HTML, structured data renders immediately, no hydration gap, no escape-fragment dance. SEO works out of the box — same as old-school PHP rendering.

PWA Studio needs careful SSR config to avoid leaking rankings: Apollo SSR setup, cache hydration on the client, fallback HTML for crawlers, escape-fragment cleanup, route-level meta-tag injection. Many real PWA Studio implementations leak rankings during build complexity — the dev team optimises for the React experience and Googlebot times out before hydration completes. We’ve seen production stores drop 30 – 50% organic traffic in the first 6 months post-PWA-launch and only recover after a 6-figure SSR-tuning project.

If SEO is in your top-3 reasons for the rebuild, Hyvä is the safer answer.