A headless CMS setup is not automatically the right call. It is a specific architectural trade-off that pays off under certain conditions and quietly punishes you under others. This guide gives you a framework for making that call before you spend two months wiring up a stack you did not need.
What a headless CMS setup actually involves
In a traditional CMS (WordPress, Squarespace, Webflow), the editing interface and the front-end delivery layer are bundled together. You log in, edit, and the same system renders HTML to visitors.
In a headless setup, those two layers are separated. The CMS — Sanity, Contentful, Payload, Strapi, and others — stores and exposes content through an API. A separate front-end application (typically a Next.js site running on Vercel) fetches that content and handles rendering. You own both layers independently.
The benefit is flexibility. The cost is complexity. You now have two systems to configure, deploy, monitor, and pay for, instead of one.
