SITE.su is an online marketplace for premium domain names, offering a catalog of more than 40,000 domains, primarily in the .ru, .su and .рф zones. The service helps businesses and individuals find a suitable web address through searchable listings, including domains matched by keywords, translations and transliterations. Buyers can explore the full catalog, use advanced search, or download domain lists with available ranking information.

The marketplace offers both outright purchases and monthly rentals. Purchases can be completed online with immediate domain transfer, while rental customers assign their own DNS servers to use a selected domain. Some rental arrangements include a guaranteed right to buy, and visitors can contact the team to ask questions or propose a price. Listings display purchase and rental costs, and may include information such as domain age and search metrics. With instant checkout options, online support and a broad selection of names, SITE.su serves customers seeking a domain for a business, website or other online project.