A content management system (CMS) is software that lets teams create, manage, and publish digital content without writing code. As of March 2026, 71% of all websites run on a CMS, with WordPress (42.4%), Shopify (5.1%), and Wix (4.3%) controlling the majority of the market. Choosing the right CMS depends on your site's purpose, your team's technical skill, and your performance requirements....