What is the recommended practice for creating each site's tree structure in a multisite implementation?

The recommended practice for creating each site's tree structure in a multisite implementation is to create a specific site definition configuration and a Home item for each site. This approach allows for better organization and management of each site's content within Sitecore.

By creating a specific site definition configuration, each site can have its own set of rules, content tree, and accessibility settings. This enables Sitecore to handle content much more efficiently and allows for tailored configurations such as domains, site-specific settings, and routing. Additionally, having a dedicated Home item for each site provides a clear starting point for the content hierarchy, ensuring that all related content can be easily associated under its respective site.

This setup not only enhances the clarity of the content structure but also supports scalability if new sites are added in the future. It aligns with best practices for multisite management in Sitecore, ensuring that each site's content can be independently managed while still functioning within the broader context of the overall Sitecore environment.

In contrast, creating content anywhere within the content tree or storing all website content under a single Home item could lead to confusion and make it difficult to manage and find specific site content. Using the default Sites folder without proper site definitions may also hinder proper configurations for different sites, leading to potential issues