What is Headless CMS?
A Headless CMS is a content management platform that exposes content through APIs rather than rendering pages directly, allowing any frontend (web, mobile, email, voice) to consume the same content from a single source.
Headless CMS separates content from presentation. Where traditional CMS platforms own both the database and the rendered page, headless platforms (Sanity, Contentful, Payload, Strapi, Storyblok) own only the database and the editorial interface. The frontend is a separate application — typically a static-rendered or server-rendered framework like Next.js, Astro, or SvelteKit — that pulls content via APIs at build time or on request. The result is faster page loads, multi-channel publishing, cleaner developer workflows, and content reuse across web, mobile, and other surfaces.
What it includes
- Editorial interface (visual or code-first depending on platform)
- GraphQL or REST API for content delivery
- Image and media transformation pipelines
- Webhooks for triggered builds or updates
- Content modelling and field validation
- Localisation and content variant handling
How it works
Pick the platform
Sanity for developer flexibility, Contentful for enterprise compliance, Payload for self-hosted control, Strapi for open source. Match platform to team and constraints.
Model content types
Articles, services, case studies, glossary terms — each with structured fields. Strict typing prevents authoring drift.
Connect to the frontend
Next.js or Astro pulls content at build (ISR) or runtime. Webhooks trigger rebuilds when content changes.
Govern and iterate
Roles, review workflows, and content audit cadence keep the model clean as it grows.
Frequently asked
Headless CMS or WordPress?
Headless when performance, multi-channel publishing, or developer velocity matter. WordPress when authoring familiarity is critical or the site is content-only with no custom integration needs.
Is headless CMS more expensive?
Total cost is usually similar over 3 years. Headless shifts cost from runtime infrastructure to upfront engineering. Performance and flexibility usually pay back the difference.
Can non-technical authors use a headless CMS?
Yes. Modern headless platforms (Contentful, Sanity Studio, Storyblok) have rich visual interfaces for authors. The "headless" name refers to architecture, not user experience.