Headless WordPress with TanStack Start: A 2026 Setup
Replace your WordPress theme with a modern SSR React front-end. Faster, more flexible, and SEO-friendly out of the box.
Why TanStack Start over Next.js
Next.js is the default, but TanStack Start ships with file-based routing, full SSR, type-safe data loaders, and a clean server-function model. For content-heavy WordPress sites, the developer experience and the smaller bundle make it a strong choice.
The architecture
WordPress headless via WPGraphQL. TanStack Start fetches posts in route loaders with query options + ensureQueryData. ISR-style revalidation via on-demand cache invalidation triggered by WP webhooks.
SEO setup
Per-route head() functions read meta from WP custom fields. JSON-LD Article schema generated from post data. Sitemap.xml as a server route that queries WPGraphQL for all published posts.
Editor workflow stays intact
Gutenberg keeps working. Editors don't see the migration. The front-end is the only thing that changes.
Migration in 4 steps
- Install WPGraphQL and ACF.
- Scaffold the TanStack Start project, wire up the WP endpoint.
- Build route loaders + components for posts, pages, archives.
- Set up cache invalidation webhooks and deploy.