Headless CMS Development Agency for Fast Sites Your Team Can Edit

A headless CMS is a content management system that stores and organises your content but does not decide how it looks. The 'head', meaning the website or app that displays the content, is built separately and asks the CMS for content through an API. Editors still log in, write, upload images and press publish, just as they would in WordPress. The difference is that the same content can then appear on a website, a mobile app or anywhere else, and the front end can be built for speed without being tied to a theme.

Editors create content in the CMS as structured entries: a page has a title, a summary, a set of blocks, an image and so on. The CMS exposes that content through an API, usually REST or GraphQL. The front end, in our case a Next.js site, fetches the content and turns it into pages, either at build time or on request. When an editor publishes, a webhook tells the site to refresh the affected pages. Visitors only ever touch the fast front end, never the CMS itself.

The common headless CMS platforms are Sanity, Contentful, Strapi, Payload, Storyblok and Hygraph, and WordPress itself can also run headless through its REST API or WPGraphQL. Sanity and Contentful are hosted services. Strapi and Payload are open source and can be self-hosted. As for sites, typical examples are marketing websites edited weekly, multi-language sites, product catalogues, help centres, and businesses where a website and a mobile app share the same content. We help you pick the platform that suits your team, not the one we happen to prefer.

Neither is better for everyone. A traditional CMS such as WordPress bundles content, design and hosting together, which is quick to start and fine for a simple blog. A headless CMS separates content from presentation, which gives faster pages, better security, and the freedom to redesign or add an app without moving content again. It costs more to set up because a developer builds the front end. If your site is a key sales channel, changes often or needs to feed more than one channel, headless usually wins over time.

Teams usually choose headless for four reasons. Speed, because the front end is pre-rendered and the CMS is not in the loading path. Security, because there is no public admin and no plugin stack to patch. Flexibility, because the same content can feed a website, an app and other channels, and the design can change without a content migration. And a better editing experience, because the editor is shaped around your content rather than a generic post screen. The trade-off is a larger setup effort at the start.

The cost depends on the size of your content model, the CMS you choose, how much freedom editors need to build pages, how much content has to be migrated, the number of languages, and the integrations involved. A marketing site with a handful of content types is a much smaller job than a multi-language catalogue that also feeds an app. Hosted CMS plans and hosting are ongoing costs on top. We scope the build on a short call and send a fixed quote, so you know the number before any work starts.

If you have developers who know Next.js or another modern framework, they can build a headless site; the CMS vendors document their APIs well. Where teams struggle is the content model, previews, migration and SEO details such as redirects, canonical URLs and structured data. Getting those wrong is expensive to undo. Many clients hire us to design the model, set up the CMS and build the first templates, then hand it over to their own developers with documentation. You own the code and the accounts either way.

Both are good, and they suit different teams. Sanity is a hosted content platform with a highly customisable editing studio, real-time collaboration and a free plan to start on, which suits marketing teams that want to get going quickly. Strapi is open source and runs on Node.js, so you can self-host it on your own server or database and avoid per-seat pricing, which suits teams that want full control of their data. We work with both, and we recommend one after looking at your editors, your hosting and your budget.

Yes, as long as the front end is built properly. With Next.js, pages are rendered to HTML on the server or at build time, so search engines read the full content without running JavaScript. You also get exact control over titles, descriptions, canonical URLs, sitemaps and structured data, and pages tend to load faster, which helps Core Web Vitals. The risks are on the build side: content hidden behind client-only code, missing redirects after migration, or SEO fields left out of the content model. We plan for all three from day one.

That is the point of the build. We give editors a set of blocks, such as hero, feature grid, testimonials, FAQ and call to action, which they can stack and reorder to make new pages. Live preview shows how a draft will look before it is published. Fields have plain labels and help text, and required SEO fields cannot be skipped. Developers are only needed when you want a new kind of block, not when you want a new page. We also run a training session with your editors before launch.