Why it matters
One content source can then feed the website, the app, the sales deck and the AI answer without copy-paste drift. You also stop rebuilding content every redesign: the words and structure persist while the skin changes. The cost is that you need developers to build and maintain the head.
How it works
Editors work in a structured editing UI; content is saved as fields (not finished pages) and served over an API. The site (often built in a framework like Next.js) fetches those fields and renders them into designed pages. This site works exactly this way: Sanity for content, a custom front end for the design.
What to do about it
Go headless when structure and multi-surface reuse matter and you have (or hire) the engineering to own the front end. If the website is a straightforward marketing site owned by marketing, a visual platform is usually the saner buy.
