Glossary · Web & App Development
Headless CMS
Overview
What 'headless' means
A traditional CMS like classic WordPress couples content and presentation: the same system that stores an article also renders the page. A headless CMS removes the head, the front-end layer, and exposes content purely as data through an API. Developers then build the front end with any technology they choose and pull content in wherever it's needed.
How a headless CMS works
Editors manage content in a familiar dashboard, structured into reusable fields and content types rather than fixed page templates. When a site or app needs that content, it requests it from the CMS's API and renders it however it likes. The same content can feed a website, a mobile app, a kiosk, and a voice assistant at once.
Why businesses go headless
Headless architecture gives you faster, more secure front ends and content that isn't locked to one channel, valuable for brands publishing across web, app, and commerce. In web design and Next.js projects, pairing a headless CMS such as Sanity or Contentful with a modern front end lets marketers edit freely while developers optimize performance independently. WordPress can also run headless during a redesign.
Where we use it
Related Zen in Tech services
How our team puts Headless CMS to work in real projects.
FAQ
Headless CMS — common questions
Headless CMS vs traditional CMS, what's the difference?
A traditional CMS manages content and renders the website in one system, while a headless CMS manages content only and delivers it via API to any front end. Headless offers more flexibility and multi-channel reach; traditional is simpler when you only need one website.
What are examples of a headless CMS?
Popular headless CMS platforms include Sanity, Contentful, and Strapi, and WordPress can be run in a headless setup. Each stores structured content and serves it through an API to your chosen front end.
Do I need a headless CMS?
Consider one if you publish to multiple channels, want a fast custom front end, or need editors and developers to work independently. If you run a single, standard website and value simplicity, a traditional CMS may be the better fit.
Need Headless CMS done right?
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Knowledge hub
From our knowledge hub
All articles →What Is a Headless CMS? A Plain-English Guide
What is a headless CMS, how it differs from WordPress, and when going headless is worth it — explained without the jargon.
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