What does "Headless CMS" mean in Sitecore?

The term "Headless CMS" refers to a system that allows content to be delivered independently of its presentation layer. This means that the back-end part of the content management system can manage and store content without being tied to a specific front-end display. This enables developers to use various front-end technologies or frameworks to present the content, allowing for greater flexibility and the ability to create seamless experiences across different channels and platforms.

This approach is particularly beneficial in modern web development where the same content may be used for web, mobile, IoT devices, and more, allowing businesses to maintain a consistent brand and user experience while optimizing for each specific interface. By decoupling the content from the presentation, it gives developers the freedom to create more dynamic and interactive applications without being constrained by the traditional monolithic CMS structure.