Headless is the right move when the frontend product outgrows the theme—component libraries, multi-channel content, or Core Web Vitals targets a PHP theme cannot hit cleanly.
It is the wrong move when:
- Your pain is messy plugins and page builders, not the rendering model. Fix the WordPress foundation first.
- Editors need rich in-context preview that you are not ready to rebuild on Next.js.
- The site is primarily brochure content with infrequent redesigns and a small team.
- You do not have anyone who can own a GraphQL schema and a Node deploy after the agency leaves.
Often the highest-ROI engagement is WordPress development that leaves you headless-ready later: clean themes, intentional content models, and no page-builder lock-in.
