The platform primarily used for creating and hosting blogs is WordPress. This content management system (CMS) is popular due to its user-friendly interface, extensive plugin ecosystem, and strong community support. WordPress allows users to easily manage posts, pages, and media with minimal technical knowledge. Additionally, it provides a range of customizable themes, enabling bloggers to create visually appealing sites. The platform also supports search engine optimization (SEO) practices, enhancing a blog's visibility. With its flexibility and scalability, WordPress remains a leading choice for bloggers worldwide.