What is a Headless CMS?

If you’re in the frontend or ecommerce development space, you’ve likely heard the term “headless CMS” being thrown around lately. But what exactly is a headless CMS and why is it becoming so popular?

A headless CMS is a back-end only content management system built as a content repository that makes content accessible via an API for display on any device or service. Unlike a traditional coupled CMS like WordPress or Magento, the front-end “head” for rendering content is decoupled and separate from the back-end repository.

Some example headless CMS’s include Prismic, Contentful, Sanity, Strapi and many more. A detailed list can be found on JamStack.org.

How a Headless CMS Works

With a traditional CMS, the back-end content repository and front-end delivery are tightly coupled. Content is authored in the CMS, and the CMS renders that content using templates and displays it.

With a headless CMS, the back-end content repository has no “head” for rendering content to users. Instead, developers maintain full control over the front-end experience and consume content from the headless CMS via API calls, normally using GraphQL but it could also be a Rest API

Benefits of Going Headless

So why would you want to go headless? Headless CMS’s offer some key advantages over traditional coupled CMS’s:

  1. Front-end Flexibility
    Since the front-end presentation layer is decoupled from the back-end CMS, developers have complete flexibility to build the front-end experience using any modern framework like GatsbyJS, React, Angular or Vue. This means faster load times and better user experiences tailored for any device or service.
  2. Omnichannel Content Delivery
    Content from a headless CMS can be consumed via APIs by any front-end like websites, mobile apps, IoT devices, smartwatches, etc. This allows for true omnichannel content delivery from a single source of truth.
  3. Improved Security
    With a headless architecture, potential vulnerabilities are isolated to just the API layer versus traditional CMS platforms where all layers are coupled together.
  4. Scalability and Performance
    Headless CMS platforms are built as distributed, cloud-hosted services optimized to serve content rapidly at scale via APIs.
  5. Future Flexibility
    New front-end technologies inevitably emerge, and rebuilding monolithic front-ends on legacy CMS platforms is painful. A headless CMS future-proofs your content delivery.

While not necessarily a fit for every use case, the flexibility, security and future-proofing benefits have made headless CMS platforms especially attractive for ecommerce companies with complex content requirements across multiple front-end experiences. As headless continues gaining momentum, ecommerce brands looking to power better digital experiences should evaluate if making the move to a headless CMS makes sense.

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