A CMS (Content Management System) is a software platform that allows users to create, edit, organise and publish digital content — typically without writing code. CMSes separate content from presentation, making it possible for non-technical users to manage websites.
Types of CMS
- Traditional / Coupled CMS — The backend (content management) and frontend (rendering) are tightly coupled. Examples: WordPress, Joomla, Drupal.
- Headless CMS — Content is managed in a backend and delivered as JSON via API to any frontend (React, Vue, mobile apps). Examples: Contentful, Sanity, Strapi.
- Static Site Generator + CMS — A headless CMS combined with a static site generator (Next.js, Hugo, Astro) to produce fast, pre-rendered pages.
Key CMS Features
- WYSIWYG or block-based editor.
- Media library for images and files.
- User roles and permissions.
- SEO fields (meta title, meta description, canonical URL).
- Plugin/extension ecosystem.
Market Share
WordPress powers approximately 43% of all websites on the internet, making it the most widely used CMS by a large margin.