Yes. Umbraco supports multisite setups, allowing several websites to run from one installation and be managed through one backoffice. Each website can have its own root node and hostname, configured through Culture and Hostnames. Websites in the same project use the same content schema, so the architecture should account for both shared requirements and site-specific content.
User access can be limited with user groups and content start nodes. Multisite means managing multiple separate websites from one installation; multilingual means offering one website in more than one language. A multisite setup can also include multilingual websites.
One installation is not right for every project. Websites in the same Umbraco project share a database and content schema, which can affect resource use, editorial workflows and future schema changes. If websites need independent data environments or strict data isolation, UKAD assesses whether separate installations are a better fit.
UKAD’s East Capital Group describes migrating five websites from WordPress and Optimizely to a shared Umbraco CMS, with a reusable component library across the sites. The case results report 65% lower licensing and hosting costs.